Atoms and Bonding Review

Which is a property shared by most molecular compounds?

• high boiling point
• high melting point
• low melting point
• nonpolar bonds

Magnesium bromide is an ionic compound with the chemical formula MgBr₂. What does the “2” tell you?

• Bromide has a 2- charge
• There are two magnesium ions to every bromide ion
• There are two bromide ions for every magnesium ion
• Bromide has a 2+ charge

In the chemical formula for an ionic compound, which item is written first?

• the name of the positive ion
• the name of the negative ion
• the subscripts
• the charges

The chemical name for the compound with the formula Na₂S is

• sodium fluride
• magnesium sulfide
• lithium oxide
• sodium sulfide

Electrons involved in bonding between atoms are

• valence electrons
• inside the nucleus
• closest to the nucleus
• positively charged

A mixture made of two or more elements, at least one of which is a metal is called a(n)

• superconductor
• complex metal
• metallic bond
• alloy

Which of the following terms means that metals can be rolled into thin sheets, as in aluminum foil, or beaten into complex shapes?

• polar
• alloy
• ductile
• malleable

Which of the following groups contain the most reactive elements?

• the alkali metals
• the alkaline earth metals
• the carbon family
• the noble gases

Which of the following groups contains the least reactive elements?

• the alkali metals
• the alkaline earth metals
• the carbon family
• the noble gases

The properties of solid metals can be explained by the structure of and the bonding among the metal atoms. 

• True
• False