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Exam 3: Ionic Compounds

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Question 31

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The electrons in the outermost occupied shell of an atom are called the ________ electrons.

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Question 32

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An ionic compound is a pure substance formed by chemically combining two or more nonmetal atoms together.

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Question 33

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A main group element is especially stable when it possesses eight total electrons.

Ionic compounds are usually solids at room temperature.

What is the correct formula for the ionic compound formed from the cation X²⁺ and the anion Y^- that results in zero overall charge?

The formula for the ammonium ion is ________.

Neutral atoms always contain an equal number of protons,neutrons,and electrons.

The (II)in the name of the ionic compound lead (II)acetate specifically indicates that there are two lead ions present in the compound.

A cation is positively charged,and has more electrons than the neutral atom.

A polyatomic ion is an ion that forms more than one charge.

What is the charge on the nickel ion in the compound NiCl₂?

What is the charge of the ions formed by group 7A elements?

What is the formula for the ionic compound formed when magnesium and oxygen combine?

What is the symbol for the ion formed by magnesium?

What is the chemical formula for the ionic compound calcium selenide?

What is the correct formula for the ionic compound formed from the cation X³⁺ and the anion Y^2- that results in zero overall charge?

Ionic compounds are composed of individual molecules,discrete groups of atoms that share electrons.

The formula for stannic fluoride is SnF₄.

Elements in group 2A form ions with a +2 charge.

The ion symbol for the ferric ion is Fe²⁺.