vodik
H, hidrogen, vodik
a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe [nemetalni enovalentni element, ki je običajno brez barve in vonja, zelo vnetljiv diatomik plin; najpreprostejši, najlažji in najbolj razširjen element v vesolju.]