Investigation 3

The ions in most all ionic compounds are organized into a

• random form

• electron dot form

• polyatomic ion form

• crystal form

When electrons are shared unequally, chemists characterize these types of bonds as

• polar covalent

• ionic

• pure covalent

• unbalanced

Bonding in molecules or ions that cannot be correctly represented by a single Lewis structure is

• polyatomic

• resonance

• single bonding

• double bonding

When alkali metals react chemically, or become ions, they

• gain one electron

• gain or lose seven electrons

• gain seven electrons

• lose one electron

VSEPR theory is a model for predicting

• the strength of metallic bonds

• the shape of molecules

• lattice energy values

• ionization energy

The electrons involved in the formation of a chemical bond are called

• dipoles

• s electrons

• excited electrons

• valence electrons

In drawing a Lewis Structure, each nonmetal atom except hydrogen should be surrounded by

• 2 electrons

• 4 electrons

• 8 electrons

• 10 electrons

Malleability and ductility are characteristic of substances with

• covalent bonds

• ionic bonds

• Lewis structures

• metallic bonds

The correct name for Na₂O is

• disodium monoxide

• sodium(I) oxide

• sodium(II) oxide

• sodium oxide

The electron configuration of nitrogen is 1s²2s²2p³. How many more electrons does nitrogen need to satisfy the octet rule?

• 1

• 3

• 5

• 8