Chemical Bonds

Front

Why do elements bond?

Back

To become stable

Front

Which of the following describes covalent bonds?

• Bonds form because of opposite charges
• electrons are shared to fill outer electron shells
• Electrons are transferred between atoms
• Covalent bonds are magical

Back

electrons are shared to fill outer electron shells

Front

What elements generally make an ionic bond?

Back

metal and nonmetal

Front

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

Back

+2

Front

What elements generally make a covalent bond?

Back

2 or more nonmetals

Front

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

Back

-2

Front

An ionic bond forms when:

• Valence electrons are shared
• A sea of mobile electrons surround the cations
• Valence electrons are transferred between atoms
• None of the above

Back

Valence electrons are transferred between atoms

Front

Which type of bond shares electrons?

Back

Covalent

Front

A bond between two metal atoms is a __________ bond.

Back

metallic

Front

A bond between two nonmetal atoms is a __________ bond.

Back

covalent