Hydrogen

Definition

Hydrogen is the first element on the periodic table. It's a colorless, odorless, tasteless gas that's highly flammable and combines with oxygen to form water.

Related terms

Proton: A subatomic particle found in the nucleus of every atom. It carries a positive electric charge.

Electron: A subatomic particle that orbits around the nucleus of an atom and carries a negative electric charge.

Covalent Bond:

A type of chemical bond where two atoms share electrons, often seen with hydrogen atoms.