Chem Vocab

Front

Protons

Back

positively charged subatomic particles

Front

Neutrons

Back

neutrally charged subatomic particles

Front

Electrons

Back

negatively charged subatomic particles

Front

Atomic number

Back

Number of protons in an atom's nucleus

Front

Atomic mass

Back

Number of protons and neutrons

Front

Chemical Symbol

Back

A one or two letter representation of an element

Front

Finding neutrons:

Back

mass number - atomic number

Front

Electron Cloud Model

Back

Model of atom where electrons form a cloud around the nucleus.

Front

Law of Conservation of Mass

Back

mass cannot be created or destroyed

Front

Coefficient

Back

A number in front of a chemical formula in an equation indicating how many molecules or atoms of each reactant and product are involved.