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CERBIS. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/cerbis/civil-engineering-research-based-initiatives-services (Accessed: 30 July 2026).
Nitrogen (Symbol: N, Atomic number: 7) is a non-metal element discovered in 1772. It belongs to period 2 and group 15 of the periodic table. It is the most abundant…