One of the most known elements on the periodic table is Nitrogen. Nitrogen’s symbol is N. If you were too look at the periodic table Nitrogen would be in-group 15. This means that it is in the 15th column going from left to right. All the elements in this column including Nitrogen are nonmetals. Nitrogen has an atomic mass of 14.007 and the atomic number is 7. The atomic number is 7 because it has 7 protons.