Which of the following statements about the formation of ions is true?     Group 2 (or 2A) elements form +1 charge cations.     When an atoms loses electrons to become an ion, its radius decreases.     Metals gain electrons to form negative ions.     Atoms with a high ionization energy tend to lose electrons easily.     Some non-metals can form ions with variable charges.

Q: Which of the following elements will most likely form ions with a –2 charge? a) Cr b) Sr c) Se…

A: Which of the following elements will most likely form ions with a –2 charge?

Q: (After transferring 2 electrons, atom forms a X 2+ ion containing 10 electrons.) Identify element X…

A: Atomic number is equivalent to number of electrons or number of protons in neutral element, that is…

Q: Why does fluorine form an F - ion instead of an F + ion?

A: Interpretation - Fluorine form an F- ion instead of an F+ ion is to be explained.

Q: How many electrons are in the selenium (Se2-) ion? O 36 O 32 O 33 O 34 O 35

A: In order to determine the total number of electrons, it is very important to know the atomic number…

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Isoeletronic species are those species which have equal number of electrons present in them  Since…

Q: fluorine atom has 9 electrons - 7 in its outer shell and 2 in its inner shell. How many electrons…

A: To become fluoride ion, fluorine must have 8 electrons in its outermost shell.

Q: Consider the following statements about ionization energy. Which ones are true? 1. It takes energy…

A: Ionization energy is defined as the amount of energy required to remove valence electron from…

Q: How do Group VIA elements form ions? A) They lose protons B) They gain two protons C) They lose two…

A: Ans Group 6A (or VIA) of the periodic table are the chalcogens: the nonmetals oxygen (O) The common…

Q: What is the relationship between the tendency of a main-group element to form a monatomic ion and…

A: Concept introduction: Monoatomic ions are those ions in which species has one atom. Example: Mg2+,…

Q: What happens when the compound HCl is formed?  Hydrogen transfers two electrons to chlorine.…

A: Hydrogen reacts with chlorine to form hydrogen chloride. The equation for the balanced chemical…

Q: Explain how the iron atom can form both an iron 2+ ion and an iron 3+ ion.

A: Iron atom is a transition metal shows variable oxidation state i.e +2 and +3 which can be…

Q: Of the following elements, which has the lowest first ionization energy? Са O Ba O Si O Ci O P

A: Larger the size of atom, lower will be it's ionization energy as it easily releases loosely bound…

Q: 3. Of the elements Nd, Al, and Ar, which will readily form(s) +3 ions? Why?

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Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. The…

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Q: Why does Li form a positive ion, Li+, whereas Br forms a negative ion, Br-?

A: The reason why Li forms positive ion and Br forms negative ion has to be given.

Q: do all the elements have the same number of valence electrons?     P, As, Se     P, S, Cl…

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Q: How many valence electrons are in the neutral element sodium? 11 O 2 0 5

A: Valance electrons :- The number of electrons present in outermost orbit of an atom are called…

Q: Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X.…

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Q: Consider an ionic compound, MX_2, composed of generic metal M and generic, gaseous halogen X. The…

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Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. The…

A: Given that , The enthalpy of formation of MX is Δ∘f=−501 kJ/mol.   The enthalpy of sublimation of M…

Q: Write an equation that shows the formation of a cesium ion from a neutral cesium atom.

A: The chemical equation that shows the formation of a cesium ion from a neutral cesium atom is

Q: How many electrons are in the most likely ion formed from an atom located in group 5A and period 3?…

A: When a neutral atom gain or lose electron, then it is called as ion.  If it gains the electron then…

Q: An atomic cation with a charge of +3 has the following electron configuration: 6 1s²2s²2p 3s² 3p 3d³…

A: Arrangement of electron in orbital filled by using Aufbau rule in which lower energy state orbital…

Q: Write the full ground-state electron configuration that is represented by the symbol [Xe]. Give the…

A: Isoelectronic species are those species which have same electronic configuration. cation which has…

Q: Rank the following five ions in order of decreasing radius. Use the periodic table as necessary.…

A: Atomic radius: The atomic radius of an element decreases as we move from left to right in a period…

Q: Which of the following pairs of atoms and ions are isoelectronic?    Se2−, Br−    Cs+, Xe…

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Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Species that have same number of electrons are called isoelectronic species.

Q: Consider an ionic compound, MX3, composed of generic metal M and generic gaseous halogen X. The…

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Q: Write the electron configurations of magnesium (z=12) and fluoride (z=9). Explain what electrons…

A: Magnesium (z=12) electron configuration will be [Mg]= 1s22s22p63s2  Two electrons from 3s orbital…

Q: Which of the following atoms is correctly listed with its number of valence electrons? Li has 3 B…

A: Valence electrons are electrons present in outermost shell or energy level of an atom. The number of…

Q: Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4…

A: Considering the ions with charges of +1,+2 ,-1 and -2 or neutral atoms.  We require symbols for 4…

Q: A monatomic ion with a charge of -2 has an electronic configuration of…

A: Isoelectronic species are those that have same number of electrons.

Q: Write the electron configuration of the element with atom number ×, where x is the last digit of…

A: Given that, the last digit of your student ID is 11 Atomic number of x = 11

Q: Arrange the ions from largest to smallest. Largest ionic radius to Smallest ionic radius. O^2- ,…

A: The trend of ionic radius is given below:

Q: What is the chemical formula for the iconic compound barium nitride?

A: Chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.