Hydrogen — synonyms, definition

1. hydrogen (Noun)

2 synonyms
H atomic number 1
1 definition

hydrogen (Noun) — A nonmetallic univalent element that is normally a colourless and odourless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe.

3 types of
chemical element element gas
1 type
tritium
2 parts of
H2O water