Physical Science, Chemical Bonds Flashcard, 2.2.18

Front

What do atoms that form positive ions tend to do?

Back

Tend to lose electrons.

Front

What do covalent compounds do?

Back

Share electrons.

Front

If an atom loses two electrons, what charge will it have?

Back

+2.

Front

What is the number of valence electrons for Oxygen?

Back

6.

Front

What happens when an atom loses an electron?

Back

It gains a positive charge.

Front

What is an ion?

Back

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is a valence electron?

Back

An electron in the outer shell of an atom that can participate in forming chemical bonds.

Front

What is the charge of a neutral atom?

Back

Neutral atoms have no charge.

Front

What happens to the charge of an atom when it gains an electron?

Back

It becomes negatively charged.