Unit 4 BR #4: Ions and Atomic Structure

A valence electron is what?

• The electron in the outer shell of an atom.

• The electron in the inner shell of an atom.

• The last electron.

• The first electron.

Atoms are electrically neutral when

• They have a minimal charge.

• They have a balanced number of protons and neutrons.

• They have a balanced number of protons and electrons.

• They have no valance electrons.

If an electron is removed, an ion becomes

• An atom

• Positive

• Negative

• Neutral

If an ion gains an electron, it becomes

• Positive

• Stable

• Atomic

• Negative

Cations have what type of charge?

• Positive

• Negative

An ion has what type of charge?

• Negative

• Positive

Two objects that are similarly charged will...

• attract.

• repel.

• not experience an electric force.

• implode.

A negatively charged object and a positively charged object will...

• attract.

• repel.

• not experience an electric force.

• implode.

Metal atoms are most likely to form...

• positively charged cations.

• negatively charged anions.

• neutral molecules.

• bations.

Non-Metal atoms are most likely to form...

• positively charged cations.

• negatively charged anions.

• neutral molecules.

• bations.