Ionic Bonding Check

When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is

• +2

• +1

• zero

• -2

• -1

An ionic bond is the attraction between

• oppositely charged ions.

• neutral ions.

• similarly charged ions.

• neutral atoms.

Ions that are made of more than one atom are examples of

• neutral ions.

• polyatomic ions.

• positive ions.

• negative ions.

Ionic compounds are electrically

• negative.

• positive.

• neutral.

• charged.

When an atom loses an electron, it becomes a

• neutral ion.

• positive ion.

• neutral atom.

• negative ion.

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 bromide ions for every magnesium ion.

• Bromide has a 2+ charge.

• There are two magnesium ions to every bromide ion.

Electrons involved in bonding between atoms are

• closest to the nucleus.

• inside the nucleus.

• valence electrons.

• positively charged.

Which of the following is a property of ionic compounds?

• They contain no charged particles.

• They have low boiling points.

• They have low melting points.

• They form hard, brittle crystals.

How many atoms of a Group 17 element would be needed to react with one atom of a Group 2 element? Explain.

• 1

• 4

• 2

• 3

Which group contains elements with two valence electrons?

• 17

• 18

• 2

• 13

• 1