Chemical Bonding Test

How many carbon atoms in Na₂CO₃?

• 2

• 1

• 3

• 6

How many nitrogen atoms in Ca(NO₃)₂

• 1

• 2

• 6

• 5

In order to be chemically stable, how many valence electrons do all atoms want? (except H and He)

• 2

• 8

• 14

• 18

Nonmetals tend to form

• cations

• anions

Metals donate electrons when forming an ionic compound.

• True

• False

When an atom gains an electron, it becomes positively charged.

• True

• False

What type of compound is CaF₂?

• ionic

• covalent

What type of compound is C₃H₈?

• ionic

• covalent

Covalent compounds

• are good conductors when dissolved in water

• have high boiling points

• form ions when dissolved in water

• have low melting points

Which element will not form an ionic bond?

• Lithium, Li

• Neon, Ne

• Chlorine, Cl

• Sulfur, S