8th Grade 3.2

Multiple Choice

Ionic bonds form between two ions that have:

• ionic compounds

• negative charges

• positive charges

• opposite charges

Multiple Choice

Ions that are made of more than one atom are called:

• ionic compounds

• crystals

• polyatomic atoms

• ionic bonds

Multiple Choice

Which is most likely to form a negative ion?

• an element from group 17

• a metal

• an element from group 1

• an element with atoms tha have eight valence electrons

Multiple Choice

Which of the following is the correct name for MgCl²?

• magnesium chlorine

• magnesium dichlorine

• magnesium chloride

• magnesium dichloride

Multiple Choice

A(n) ________________ is an atom or group of atoms that has an electric charge.

• ion

• compound

• molecule

Multiple Choice

The attraction between oppositely charged ions is called a(n)

• chemical bond

• ionic bond

• molecular bond

Multiple Choice

When an atom loses a valence electron, it becomes a:

• positive ion

• negative ion

• neutral ion

Multiple Choice

In order to have a stable arrangement of 8 valence electrons, metal atoms are likely to _____________ electrons.

• gain

• reject

• lose

Multiple Choice

In an ionic compound, the total positive charge of all the positive ions ________ the total negative charge of all the negative ions.

• is greater than

• is less than

• equals

Multiple Choice

Because the force of attraction between the positive and negative ions is so strong, ionic compounds have ________________  melting points.

• high

• low

• variable