Basic Chemistry Terms

Front

The smallest unit of matter/chemical element.

Back

Atom

Front

The process of atoms joining together to form molecules.

Back

Bond

Front

A symbolic representation of a chemical reaction using symbols of the elements.

Example: 2H₂ + O₂ → 2H₂O

Back

Chemical equation

Front

A way to write what makes up a substance using symbols.

Example: H₂O

Back

Chemical formula

Front

A substance formed when two or more chemical elements are chemically bonded together.

Back

Compound

Front

A particle in an atom with a negative charge.

Back

Electron

Front

A group of atoms bonded together.

Back

Molecule

Front

A particle found in the nucleus of an atom, with no electric charge.

Back

Neutron

Front

The center of an atom; contains protons and neutrons.

Back

Nucleus

Front

A particle found in the nucleus of an atom, with a positive electric charge.

Back

Proton