Engelsk navneord: atomic number 1 | |||
1. | atomic number 1 (om masse el. substans) 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 | ||
Termer med samme betydning (synonymer) | H, hydrogen | ||
Mindre specifikke termer | chemical element, element, gas | ||
Mere specifikke termer | tritium | ||
Vedrærer disse overordnede termer | H2O, water | ||