Smallest unit of chemical. What matter made of.

Anything that takes up space and has mass

A chart used to organize all elements

Each element is a type of atom

Two or more elements combined.

A group of atoms bonded together to make an element.

Symbol

Numerical or constant quantity placed before and multiplying the variable in an algebraic expression

The process in by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water

The chemical process that generates most of the energy in the cell supplying the molecules needed to make metabolic reactions

An article or substance

A substance that takes part in and changes during reaction.

A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.

A colorless, odorless gas produced by burning carbon and organic products and by respiration

A colorless odorless reactive gas. The chemical element atomic number eight. Life supporting component of the air.