Copy of Unit 6 Test

Often, atoms join so that each atom will have what?

• An even number of electrons

• An outermost energy level that is full of electrons

• An equal number of protons and electrons

• More electrons than either protons or neutrons

An ionic bond is a bond that forms between?

• ions with opposite charges

• atoms with neutral charges

• one atom's nucleus and another atom's electrons

• the electrons of two different atoms

Which type of bond involves the sharing of electrons between atoms?

• Covalent

• Metallic

• Ionic

• Chemical

What holds atoms and ions together?

• Nuclear bonds

• Stick bonds

• Physical bonds

• Chemical bonds

Why do atoms sometimes form bonds?

• To lose energy

• To become more stable

• To give away neutrons

• To give away protons

Sodium has one electron in its outer shell and chlorine has seven electrons in its outer shell. The atoms will form a(n) _________ bond by __________ their electrons.

• covalent, transferring

• covalent, sharing

• ionic, transferring

• ionic, sharing

Oxygen atoms have six electrons in their outer shells. When two oxygen atoms bond, they form a(n) __________ bond by __________ their electrons.

• covalent, transferring

• covalent, sharing

• ionic, transferring

• ionic, sharing

What would a covalent compound made of one sulfur and two oxygen atoms be named?

• Sulfur dioxide

• Sulfur oxide

• Disulfur oxide

• Sulfide oxygen

What would the covalent compound N2O5 be named?

• Nitrogen oxide

• Dinitrogen oxide

• Nitrogen pentoxide

• Dinitrogen pentoxide

What holds a compound together?

• Chemical bonds

• Gravity

• Physical bonds

• Magnetism