`5a-group-elements` Related Article Results

Nitrogen, also known as dinitrogen, is a nonmetallic element in Group 15 of the periodic table, with an atomic number of 7. Its atomic mass is approximately 14.00674 g/mol. Under standard conditions, nitrogen exists as a diatomic gas (N₂) that is colorless, odorless, and tasteless. It constitutes about 78% of the Earth’s atmosphere by volume. Nitrogen is an essential component of fundamental biomolecules such as DNA, RNA, and proteins, playing a critical role in the structure and function of liv