Ionic and Covalent Compounds

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.

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

• AlCl.
• ClAl.
• AlCl₃.
• Al₃Cl.

Tags

NGSS.MS-PS1-1

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

• KO.
• K₂O.
• K₂O₂.
• KO₂.

Tags

NGSS.MS-PS1-1

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many Aluminum atoms are in Al₂O₃?

• 3

• 5

• 2

• 1

Tags

NGSS.MS-PS1-1

When naming ionic compounds, the metal is always named first and the nonmetal is always named second.

• True

• False