Match the following!

1. the smallest complete unit of a compound or diatomic gas
2. a new substance formed by the combination of two or more different atoms
3. area that electrons are found around an atomic nucleus
4. a substance consisting of only one type of atom

1. compound
2. molecule
3. element
4. energy level

Compound- a new substance formed by the combination of two or more different atoms
Energy Level- area that electrons are found around an atomic nucleus
Element- a substance consisting of only one type of atom
Molecule- the smallest complete form of a compound or diatomic gas

Volcanoes are good with methane