CPC Unit 5 Study Guide

The force that holds two atoms together is called a(n) _________________?

• chemical bond

• ionic force

• molecular attraction

• atomic glue

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A chemical bond may form by the attraction of the positively charged ​ (a)   of one atom for the negatively charged ​ (b)   of another atom, or by the attraction of charged atoms, which are called ​ (c)   .

• neutrons
• atoms
• nucleus
• electrons
• ions
• molecules
• covalent bonds

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Chemical bonds may involve ​ (a)   electrons, which are the electrons in the outermost ​ (b)  

• core
• bonding
• free
• valence
• energy level
• ionosphere

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The ​ (a)   are a family of elements that have very little tendency to react. Most of these elements have a set of eight outermost electrons, which is called a stable ​ (b)   .

• halogens
• alkali metals
• transition metals
• noble gases
• octet
• duet
• pseudo noble gas configuration

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The relatively stable electron structures developed by loss of electrons in certain elements of groups 3, 4, 13, and 14 are called ________________.

• pseudo noble gas formations

• ionic bonds

• transition metal formations

• metallic electron configurations

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A sodium (Na) atom tends to lose one electron when it reacts.

• True

• False

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How many electrons does Zinc need to lose to get a pseudo-noble gas formation.

(type number only)

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An ionic bond is

• attraction of an atom for its electrons.

• attraction of atoms for electrons they share.

• a force that holds together atoms that are oppositely charged.

• the movement of electrons from one atom to another.

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The formula unit of an ionic compound shows the

• total number of each kind of ion in a sample.

• simplest ratio of the ions.

• numbers of atoms within each molecule.

• number of nearest neighboring ions surrounding each kind of ion.

The overall charge of a formula unit for an ionic compound

• is always zero.

• is always negative.

• is always positive.

• may have any value.

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