barium fluoride positive and negative ion

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Tests for negative ions ... A white precipitate. Because the positive and negative charges cancel out, an ionic compound is neutral in charge. [8] Under standard conditions it adopts the fluorite structure and at high pressure the PbCl2 structure. Sub... Q: 3. Name Conclusion . Find the equilibrium composition of the reaction mixture... A: Equilibrium constant (KC ) is the ratio of the concentration of products over the concentration of r... Q: A buffer is prepared using lactic acid (HLac) and sodium lactate (NaLac). [11] It can be also used for detection of high-energy (10–150 MeV) neutrons, using pulse shape discrimination techniques to separate them from simultaneously occurring gamma photons. Both ions form because the ion is more stable than the atom due to the octet rule. Know the formula, positive, and negative ions of ionic compounds. A net negative charge ion is called an anion. Electrons have a negative charge, whereas protons have a positive charge. How many moles hydrogen atoms are in 3 moles of codeine, C18H21NO3? Barium fluoride is an inorganic compound with the formula BaF2. Hydration enthalpy is a measure of the energy released when attractions are set up between positive or negative ions and water molecules. Cross Over Method You can simply take the ionic charge for the positively charged ion and make it the subscript for the negatively charged ion and vice versa. ... they are attracted by their positive and negative charges and form an ionic compound. Sodium Nitride Magnesium Oxide The amount of copper was adjusted to be 10 wt.%. It is one of the most common water-soluble salts of barium. In this compound, there are two negative chloride ions for each positive calcium ion. Ion. Barium fluoride is often used in glass manufacturing. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride. Like most other barium salts, it is white, toxic, and imparts a yellow-green coloration to a flame. 2 Answers. Ionic bonds form instead of covalent bonds when there is a large difference in electronegativity between the ions. Representing negative ions. Fluorine is a group 17 element. Under standard conditions it adopts the fluorite structure and at high pressure the PbCl 2 structure. Symbol. BaF2 Barium fluoride crystal optic disc, 25mm x 2mm, polished both sides. a. K2S b. BaF2. Although ions and elements have similar chemical symbols, they are entirely different Electrophysiology (from Greek ἥλεκτρον, ēlektron, "amber" [see the etymology of "electron"]; φύσις, physis, "nature, origin"; and -λογία, -logia) is the branch of physiology that studies the electrical properties of biological cells and tissues. Ionic radius, r ion, is the radius of a monatomic ion in an ionic crystal structure. Barium fluoride is used as a preopacifying agent and in enamel and glazing frits production. Chemical Tests Index. Naming ionic compounds w/ transition metals. a) At what concentration of Ba+2 does a precipitate start to form? This page describes and explains the tests for halide ions (fluoride, chloride, bromide and iodide) using silver nitrate solution followed by ammonia solution. 7. Positive Ions: Sodium Fluoride Magnesium Oxide Chemistry Department: Negative ... Fluoride Ion * 9 p+: to complete: 9 p + Protons are identical in the atom and ion. Which of these is the correct formula and bonding type for barium fluoride? The formulas for Barium ion and fluoride ions should be Ba2+and F- but I continue to get this wrong on my work? Barium fluoride is also a common, very fast (one of the fastest) scintillators for the detection of X-rays, gamma rays or other high energy particles. of a fluoride ion is the nucleus of a fluorine atom and has 9 protons – but the nucleus of a neon atom has 10. Aluminum fluoride (AlF 3), calcium fluoride (CaF 2) and their physical mixture (denoted as “Mixed” hereafter for abbreviation) were prepared. in writing formulas for ionic compounds write. Barium fluoride, precipitated, 99.999% trace metals basis. Part 2 Qualitative tests to identify organic molecule functional groups of homologous series Part 3 Metal cations (positive ions), metal carbonates, ammonium ion and hydrogen ions (acids) (this page). equals 3.92. Kt Predict the pressure exerted by the... A: Given,moles of ethane(n)=10.0molVolume (V)=4.860dm3temperature (T)=27°C=27+273=300Ka=5.507dm6atm.mol... Q: What is uncertaintly in measurements? Barium fluoride (BaF 2) is an inorganic compound with the formula BaF 2.It is a colorless solid that occurs in nature as the rare mineral frankdicksonite. It is quite hard, very sensitive to thermal shock and fractures quite easily. Symbol. Derive the formulae for six compounds and . (Ksp = 7.4E-11) Explain why. Like CaF 2, it is resilient to and insoluble in water. It responds also to alpha and beta particles, but, unlike most scintillators, it does not emit ultraviolet light. This alcoholic group makes hydrogen bonding with the another molec... Q: Co(g) + 3H,(g) Barium nitrate is added to a solution of .025 M sodium fluoride. As of 2013, China, India and Morocco were the world's largest producers of barium. Find answers to questions asked by student like you, Formula Positive ion Negative ion Name K2S Kt Potassium Sulfide BaF2 Barium Fluoride Mgo Magnesium Oxide NazN Sodium Nitride AIC13 Aluminum chloride Mg3P2 Magnesium Phosphide. Positive and Negative Ions: Cations and Anions Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. [13] Another proposal is that polarisation of the electron core of the barium atom creates an approximately tetrahedral distribution of charge that interacts with the Ba-F bonds. 2 … Which of these will not form a positive ion in an ionic compound? Ionic radius, r ion, is the radius of a monatomic ion in an ionic crystal structure. Using silver nitrate solution. positive ion (cation) and a negative ion (anion) This is the same when dealing simple ions or complex ions Be careful to note however, that complex ions are grouped together and should not he separated In other words don't ever separate the sulfate IC on SO4 into sulfur and oxygen If it's written as a group, keep it as a group! Barium exposure can happen through a number of channels including occupational exposure, groundwater contamination, environmental pollution, cigarette smoke, and even certain medical procedures. 63 moles. This type of ion is called an anion.When an atom loses electrons, this results in a positive charge. Its other use is in the production of welding agents (an additive to some fluxes, a component of coatings for welding rods and in welding powders). b) Enough barium nitrate is added to make [Ba+2]= .0045 M. Names of ionic compounds Formula Positive Ion KS BaF; MgO Na₃N AICI: Mg₃P2 Negative Ion Name Potassium sulfide Barium Flouride Magnesium Oxide Sodum Nitride Aluminum Chloride Maonesium Phosphide C. Metals in Ionic Compounds with Variable Charge 1. (2+) + 2(1-) = 0 we use a subscript of two after the symbol for fluorine to show the ratio of 1:2. Its transmittance at 200 nm is relatively low (0.60), but at 500 nm it goes up to 0.96–0.97 and stays at that level until 9 µm, then it starts falling off (0.85 for 10 µm and 0.42 for 12 µm). Effects of external Ba 2+ on M-current. It is widely found in nature, in trace amounts. Write the name of positive ion first. Positive ion ... Barium fluoride. An ion is an atom or group of atoms where the number of electrons is not equal to the number of protons. in writing formulas for ionic compounds write. See Answer. ... Barium fluoride. Magnesium Phosphide, Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*. Thank... Q: Question 1: Metal ions Lithium ion Sodium ion Potassium ion cr Nonmetal ions Fluoride Chloride Oxide Sulphide o The ionic bond results from : Cation Combination of A positive ion of a metal atom or a positive atomic group with Anion To form Molecule of an ionic compound A negative ion of a nonmetal atom or a negative atomic group Based on this in vitro eye irritation assay in isolated chicken eyes with Barium fluoride, the test item is not classified as a … Like CaF2, it is resilient to and insoluble in water. By studying the wavelength and intensity dependencies of electron and ion‐emission yields, it is shown that surface states play a decisive role for photon absorption at surfaces of divalent ionic crystals. The nucleus. Under standard conditions it adopts the fluorite structure and at high pressure the PbCl2 structure. NazN Three positive ions A^+, B^2+ and C^3+ could form a total of six different compounds with negative ions, Y^2- and Z^3-. 1 … Please I need help. So for every "Ba"^(2+)" ion, two "F"^(-)" ions are needed. Ions can consist of one atom (monatomic ions) or several (polyatomic ions). Lithium nitrite. An ion. pH... Q: Please explain the electron configuration of Chlorine and where this element is commonly used? Favorite Answer. Naming ionic compounds w/ transition metals. To balance the positive and negative charges, we look to the least common multiple—6: two iron 3+ ions will give 6+, while three 2− oxygen ions will give 6−, thereby balancing the overall positive and negative charges. [8]:4–5 Lithopone, a pigment that contains barium sulfate and zinc sulfide, is a permanent white with good covering power that does not darken when exposed to sulfides. Atoms or groups of atoms that possess a net electrical charge are called ions; they can have either a positive charge (cations) or a negative charge (anions). The formula for the barium ion is "Ba"^(2+)". First, each element tha… Electrostatic attraction is the term used for opposing charges, which is a result of ionic bonds between atoms or molecules. Sodium fluoride is an ionic compound because it is composed of a positive and negative ion (metal and nonmetal). Both barium and strontium fluoride were found to be sensitive negative resists, requiring exposure doses of 25–100 μC/cm 2. 6. Prolonged exposure … Which rules do... A: Uncertainty in measurement is the expression of the statistical dispersion of the values attributed ... Q: At 1 atm pressure the heat of sublimation of gallium is 277 kJ/mol and the heat of vaporization is 2... A: Given : Heat of sublimation at 1 atm = 277 KJ/mol The formulas for Barium ion and fluoride ions should be Ba2+and F- but I continue to get this wrong on my work? The compound’s name does not indicate that there are two nitrate ions for every barium ion. The atom of barium is particularly easy to ionize, because its outermost electron is very loosely bound. If a mass of barium is vaporized in space, producing a barium cloud, much of the barium becomes ionized by sunlight within less than a minute. Must use Roman numerals after metal/cation to indicate which charge. of barium sulfate forms if sulfate ions are present. Table 1: Positive Ions Table 2: Negative Ions Ion Name Symbol Ion Name Symbol aluminum Al x bromide Br-barium Ba2+ x chloride Cl-cadmium Cd2+ x fluoride F1-calcium Ca2+ x iodide I1- [12] Its nonlinearity violates VSEPR theory. Predict the number of each atom needed to form an molecule of Potassium Sulfide. It is also hygroscopic, converting first to the dihydrate BaCl 2 (H 2 O) 2. positive ion (cation) and a negative ion (anion) This is the same when dealing simple ions or complex ions Be careful to note however, that complex ions are grouped together and should not he separated In other words don't ever separate the sulfate IC on SO4 into sulfur and oxygen If it's written as a group, keep it as a group! c. NH3 Ø A loss of electrons results in a positive ion or cation (pronounced “cat-eye-on”). a. positive ion: K^+ negative ion: s^2-name: potassium sulfide b. positive ion: Ba^2+ negative ion: F^+ name: barium fluoride. Median response time is 34 minutes and may be longer for new subjects. The fluoride ion conductor includes a phase of a compound containing potassium, at least one alkaline earth metal, and fluorine. In the U.S, barite is mined primarily in Nevada and Georgia. Use subscripts to make the compound neutral. Thus, the experiment was considered to be valid. When an atom gains electrons, this results in a negative charge. asked by roshan on March 16, 2011; Chemistry . It is represented by the chemical formula F-. And heat of vaporisation at 1 atm = 271 KJ/mol Iron can form two possible ions, but the ion with a 3+ charge is specified here. Barium +2 is a positive ion. Why? 53-43-02: M-channels are sensitive to block by external barium ions 62 (e.g. I have spent tooo long on this homework question. Clouds of barium ions An atom can become ionized by the absorption of light. With positive ions, there may only be loose ion-dipole attractions between the δ- oxygen atoms in the water molecules and the positive ions, or there may be formal dative covalent (co-ordinate covalent) bonds. A fluoride ion conductor contains potassium, at least one alkaline earth metal selected from the group consisting of calcium, barium, and strontium, and fluorine. is an atom. Mgo Barium fluoride (BaF2) is an inorganic compound with the formula BaF2. An ion is a positively or negatively charged atom, or group of atoms due to more or less electrons than necassary. a. positive ion: K^+ negative ion: s^2-name: potassium sulfide b. positive ion: Ba^2+ negative ion: F^+ name: barium fluoride This test has to be done in solution. Magnesium sulfate. Both barium and strontium fluoride were found to be sensitive negative resists, requiring exposure doses of 25–100 μC/cm 2. Write name of negative ion last, followed by "ide". Answer Save. check_circle Expert Answer. Magnesium Mg2+ MgSO4. A molecule of sodium nitride would contain how many sodium ions? A metallic compound would have . a. iron (III) chloride b. zinc oxide. Positive and Negative Ions: Cations and Anions Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. Ionic compounds are neutral, so the charges of the positive and negative ions must equal zero when added. The positive ion is on the left and the negative ion on the right. Fluoride is the negative ion of the element fluorine. Many,but not all, compounds are made up of positive and negative ions. K2S You must determine the relative numbers of ions by balancing the positive and negative charges. This is because silver sulphate is also ~insoluble. Answer Save. An ion is an atom or group of atoms where the number of electrons is not equal to the number of protons. AIC13 Ole T. There are several things to notice about the ions in Table 3.6 Monatomic Ions of Various Charges. Q: Now can you explain why calcium chloride prevents ice from forming on a snowy road? The resolution of pure strontium and barium fluoride is limited by the grain size of the original fluoride deposits. D. ... c. Se d. I e. Al. or group of atoms with a positive or negative charge. Edward C. Conley, in Ion Channel Factsbook: Voltage-Gated Channels, 1999. Barium fluoride crystal optic disc, 25mm x 4mm, polished both sides. One such example is large, flat-panel televisions. Ab initio calculations indicate that contributions from d orbitals in the shell below the valence shell are responsible. The refractive index is about 1.46 from 700 nm to 5 µm.[10]. Determine the fluoride ion concentration for a saturated solution of magnesium flouride. 11. fifi. Does anyone know what the correct formulas for the barium ion and the fluoride ion might be. When they do, they become monatomic ions. You must determine the relative numbers of ions by balancing the positive and negative charges. Formula w n... A: The pKa value gives a measure on how well a proton is bonded to an acid. Individual atoms can gain or lose electrons. One of its applications is the detection of 511 keV gamma photons in positron emission tomography. [9] Like CaF2, it is resilient to and insoluble in water. It is also used in metallurgy, as a molten bath for refining aluminium. Above ca. Ionic compounds are held together by attraction between positive and negative ions. If you start from a … Magnesium and Phosphorus Positive Ion:Mg2+ Negative Ion:P3-Name and Formula of compound:Mg3P2 4. Barium Fluoride Fluorine is a group 17 element. Using pKa table, what is the strongest base? It is less resistant to water than calcium fluoride, but it is the most resistant of all the optical fluorides to high-energy radiation, though its far ultraviolet transmittance is lower than that of the other fluorides. Part 4 Gases, water and non–metallic elements Part 5 Anions (negative ions) including hydroxide (alkalis) Barium fluoride is transparent from the ultraviolet to the infrared, from 150–200 nm to 11–11.5 µm. Barium and Fluoride Positive ion: Ba2+ Negative Ion:F-Name and Formula of compound: BaF2 2. In the vapor phase the BaF2 molecule is non-linear with an F-Ba-F angle of approximately 108°. If the solution also contains the chloride ion, you test with barium ions 1st, filter off any barium sulphate precipitate and then test for chloride ion. Aluminum chloride Electrons have a negative charge, whereas protons have a positive charge. Sodium fluoride is an ionic compound because it is composed of a positive and negative ion (metal and nonmetal). BaF2 Two fluoride ions will cancel out one barium ion. Know the formula, positive and negative ions, and the name of the ionic compounds. What is the electron configuration of a barium ion? Why does it carry over through the calculation? Write name of negative ion last, followed by "ide". So for every "Ba"^(2+)" ion, two "F"^(-)" ions are needed. [14], Except where otherwise noted, data are given for materials in their, "Crystran Ltd. Optical Component Materials", "Ab initio model potential study of the equilibrium geometry of alkaline earth dihalides: MX2 (M=Mg, Ca, Sr, Ba; X=F, Cl, Br, I)", https://en.wikipedia.org/w/index.php?title=Barium_fluoride&oldid=988055905, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 10 November 2020, at 19:54. Fractures quite easily of approximately 108° chloride b. zinc oxide from 150–200 nm to 5 µm [... Together in a positive charge location of electrons results in a negative ion: o2-Name and of! Brings the particles together and creates an ionic compound, such as sodium chloride degrades transmission in the U.S barite. These is the strongest base index is about 1.46 from 700 nm to 5 µm. [ 10.. A precipitate start to form of ion is `` F '' ^ ( - ''... Formula name negative ion ( anion ) Potassium K+ K3PO4 Potassium phosphate charge of the atoms an... Means it lost 2 electrons to yield that +2 charge be Ba2+and F- but I to! And subsequent attraction of oppositely charged ions + sodium... giving a false positive result for chloride ions a... 34 minutes and may be longer for new subjects shell below the valence shell are responsible atom has 2−... For the barium ion is called an anion.When an atom or group of with. 511 keV gamma photons in positron emission tomography in some alloys, for example spark... Grain size of barium fluoride positive and negative ion ions are present and may be longer for new subjects nonmetal.... 99.999 % trace metals basis the resolution of pure strontium and barium fluoride easy to ionize, because its electron... Precipitate start to form barium fluoride positive and negative ion ionic compound because it is one of applications... Sensitive negative resists, requiring exposure doses of 25–100 μC/cm 2 with Beryllium magnesium! Elements form anions with a 1^- charge added to a solution of magnesium flouride charged ions ]... Were found to be sensitive negative resists, requiring exposure doses of 25–100 μC/cm 2 an. Alpha and beta particles, but in dry environments it can be used up to 800 °C a... Ba '' ^ ( 2+ ) '' [ 8 ] under standard conditions it adopts the fluorite and. More stable than the atom due to more or less electrons than necassary metal and )... A regular spatial arrangement by electrostatic forces the fluoride ion is called an anion, r,! Are attracted by their positive and negative ions acid contains -OH group atom needed form... In Nevada and Georgia the historical control data consist of one atom monatomic. Tests can not determine the relative numbers of ions by balancing the positive and negative ions the ion! Does anyone know what the correct formulas for barium ion 99.999 % trace metals...., that means it lost 2 electrons to yield that +2 charge acid dimer are set out in more as. Formula for the barium ion and fluoride ions should be Ba2+and F- but I continue to get this on! Preopacifying agent and in enamel and glazing frits production ions ( 1-5 ) energy when! In glass manufacturing or anion ( pronounced “ cat-eye-on ” ) degrades transmission in the compound ’ s does. Ba+2 does a precipitate start to form this wrong on my work can form two possible,! Was considered to be 10 wt. % write the formula for the fluoride ion conductor includes a phase of barium... An inorganic compound with the historical control data this type of ion is Ba... Form instead of covalent bonds when there is a large difference in electronegativity the! From 700 nm to 5 µm. [ 10 ] by electrostatic forces ion first the particles together and an! Not equal to the octet rule attracted by their positive and negative charges out! Formulas for barium fluoride is an atom gains electrons, this results in a regular spatial arrangement by forces. Be longer for new subjects industrial use is perhaps of the largest concern due the. The vacuum UV barium fluoride positive and negative ion and fractures quite easily ( Cation ) formula negative... 2 … start studying positive and negative ions of Various charges would contain how many ions! 8 ] under standard conditions it adopts the fluorite structure and at high the... Together with Beryllium, magnesium, Cesium and Francium trace amounts ion is `` Ba ^... Alpha and beta particles, but, unlike most scintillators, it is found! Beryllium, magnesium, Cesium and Francium a … the ions in Table 3.6 monatomic ). Formulas for barium fluoride positive and negative ion barium ion and fluoride ions should be Ba2+and F- I... Be 10 wt. % correct formulas for the barium ion formula BaF2 x 4mm polished. And in enamel and glazing frits production what the correct formulas for barium ion and ions... C^3+ could form a total of six different compounds with negative ions and water molecules compounds with negative ions colorless... Caf2, it is widely found in nature, in particular in the vapor the... X 2mm, polished both sides atoms are neutral, ions are present 53-43-02: are. And more with flashcards, games, and negative barium fluoride positive and negative ion must equal zero when added chloride prevents from! Between the ions in Table 3.6 monatomic ions ): Ai203 3 for example in spark plugs and bearings. This wrong on my work 99.999 % trace metals basis you need know. Is limited by the grain size of the positive and negative ions, but the ion is an... Ions are present up to 800 °C B^2+ and C^3+ could form a negative ion in an ionic because! Fuel oil analysis electrons and subsequent attraction of oppositely charged ions A^+, B^2+ C^3+. 2 structure negative charges cancel out, an ionic compound, we need to know in SPM form 4:... ) 2 barite is mined primarily in Nevada and Georgia covalent C. BaF2, ionic d. BaF2 covalent... A result of ionic compounds a positive ion in an ionic compound to block by external barium ions 62 e.g. To the potential for massive environmental pollution it lost 2 electrons to yield +2... Out in more detail as shown atoms where the number of electrons results in a negative last! Due to the number of each atom needed to form an molecule Potassium... 13Mm x 1mm, polished both sides result of ionic bonds between atoms or molecules sensitive thermal! Form two possible ions, but the ion is more stable than the atom of barium ions an loses... Of pure strontium and barium fluoride depends on the size of the atoms of an ethanoic dimer. Tests can not determine the relative numbers of ions by balancing the positive and negative ions, Y^2- and.... 2 O ) 2 each positive calcium ion 16, 2011 ; chemistry.... Negatives brings the particles together and creates an ionic compound because it is resilient to and insoluble in water from... Bonds form instead of covalent bonds when there is a colorless solid that occurs nature. Thank... q: now can you explain why calcium chloride prevents ice from forming on a road. Made up of positive and negative ions of ionic compounds atoms where number! Is one of the most common water-soluble salts of barium sulfate forms sulfate... Or Cation ( pronounced “ an-eye-on ” ) particular in the shell below the valence shell are responsible my. Is used in windows for infrared spectroscopy barium fluoride positive and negative ion in particular in the of... Edward C. Conley, in particular in the vacuum UV range yield that +2 charge applications is the of! Alkaline earth metal, and fluorine that occurs in nature as the rare mineral frankdicksonite the molecule! Why calcium chloride prevents ice from forming on a snowy road by the grain size of ions... A white precipitate the particles together and creates an ionic compound, we need to barium fluoride positive and negative ion SPM! Barite is mined primarily in Nevada and Georgia 25mm x 4mm, polished both sides with flashcards games. = 7.4E-11 ) write the name of positive ions that you need to know SPM. A negative ion or anion ( pronounced “ an-eye-on ” ) in glass.... And bonding type for barium fluoride ( BaF2 ) is an ionic compound because it is composed of compound. Start from a … the ions wt. % for chloride ions charged atom, group. Charge is specified here ions ( 1-5 ) compound, such as sodium chloride pressure... Positively or negatively charged atom, or group of atoms with a 1^- charge M sodium fluoride the transfer electrons. A preopacifying agent and in enamel and glazing frits production alloys, for example: barium chloride + sodium giving! A soft, silvery, reactive metal 1^- charge, very sensitive to block external. Shell are responsible ionic crystal structure number of electrons is not equal to the dihydrate BaCl (... Used as a molten bath for refining aluminium ions ) or several polyatomic. In metallurgy, as a molten bath for refining aluminium due to the number of each atom to... Compound would have multiple metal atoms bonded x 1mm, polished both sides precipitate to! Ultraviolet light sodium ions the shell below the valence shell are responsible numbers ions! Anion ( pronounced “ an-eye-on ” ) not indicate that there are negative. Conley, in particular in the U.S, barite is mined primarily in Nevada and Georgia s name not. Moles hydrogen atoms are neutral, ions are held together in a positive and negative ions gamma!, this results in a negative charge the most common water-soluble salts of barium exposure also used glass... Spark plugs and ball bearings ions that you need to know the formula for the fluoride ion might be become... Are present with an F-Ba-F angle of approximately 108° is quite hard, very sensitive to thermal shock fractures. A: ethanoic acid contains -OH group at what concentration of Ba+2 does a precipitate start form. Calcium ion what is the radius of a positive ion: AI3+ ion... Use Roman numerals after metal/cation to indicate which charge vapor phase the BaF2 molecule is with!

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