Does a hydrogen atom have neutrons?

1 Answer
May 12, 2016

The deuterium and trittium isotopes certainly do.

Explanation:

Most hydrogen nuclei have only the 1 nuclear particle: the protium isotope, 1H is certainly abundant, and has no neutrons. However, some hydrogen nuclei contain one or two neutrons to give the 2H deuterium, and 3H tritium isotopes respectively.