Ionic and covalent compounds and naming

An ionic compound of calcium and chlorine would be named

• calcium chlorine.
• calcium chlorite.
• calcium chloride.
• chlorine calcium.

A covalent compound made of one sulfur and two oxygen atoms would be named

• sulfur dioxide.
• sulfur oxide.
• disulfur oxide.
• sulfide oxygen.

The covalent compound N₂O₅ would be named

• nitrogen oxide.
• dinitrogen oxide.
• nitrogen pentoxide.
• dinitrogen pentoxide.

In the compound TiO₂, titanium has a charge of

• 4⁺
• 2⁺
• 2^-
• 4^-

The chemical formula for an ionic compound of aluminum and chlorine is

• AlCl.
• ClAl.
• AlCl₃.
• Al₃Cl.

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

• Gain 5

• Lose 3

• Nothing

Zinc fluoride

• ZnF₂

• Zn₂F

• ZnF

• Zn₂F₄