Chapter 14 Quiz Review

Which is a property shared by most molecular compounds?

• high boiling point high melting point

• high melting low melting point

• low melting point

• non-polar bonds

When an atom loses an electron, it becomes a

• positive ion.

• negative ion

• neutral ion

• neutral atom.

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 fluoride.

• magnesium sulfide.

• lithium oxide.

• sodium sulfide.

What is a double bond?

• a bond between two atoms

• one pair of electrons shared between two atoms

• two pairs of electrons shared between two atoms

• two pairs of electrons shared between four atoms

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.

• metallic bond.

• complex metal.

• 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 contains the most reactive elements?

• the alkali metals

• the alkaline earth metals

• the carbon family

• the noble gases