Chemical bonds

Front

Ionic bonds are between...

Back

metals and nonmetals

Front

Covalent bonds are between...

Back

two or more nonmetals

Front

What kind of bond forms when atoms share electrons?

Back

covalent

Front

What kind of bond forms when atoms exchange electrons? Options: ionic, covalent, artificial, univalent

Back

ionic

Front

What are valence electrons?

Back

electrons in the outer shell

Front

If an atom loses two electrons, what charge will it have? Options: -2, -1, +1, +2

Back

+2

Front

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

Back

-2

Front

If an atom has 7 protons and 7 electrons, what charge will it have?

Back

0

Front

How many valence electrons does oxygen have? Options: 2, 4, 5, 6

Back

6

Front

An electron has what kind of charge?

Back

negative