atomic number 7

Noun atomic number 7 has 1 sense

• atomic number 7(n = noun.substance) n, nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues;
is a kind of chemical element, element, gas
has particulars: azote, liquid nitrogen