Nitrogen

Nitrogen is atom number 7 — every Nitrogen atom has exactly 7 protons in its center, and that number is what makes it Nitrogen and nothing else. Its symbol is N. At room temperature it is a gas.

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System.

Summary from the source dataset, derived from Wikipedia (CC BY-SA 3.0) · original article

Nitrogen sits in period 2, group 15 of the p-block. Its 7 electrons fill shells of 2, 5 — written as [He] 2s2 2p3. Its electronegativity is 3.04 on the Pauling scale, and pulling the first electron off takes 1402.3 kJ/mol. The outermost shell holds 5 electrons — the ones that do all the chemistry.

Full configuration: 1s2 2s2 2p3
Ionization energies (kJ/mol): 1402.3, 2856, 4578.1, 7475, 9444.9, 53266.6, 64360
Electron affinity: -6.8 kJ/mol · Electronegativity (Pauling): 3.04
Density: 1.251 g/L · melts 63.15 K · boils 77.355 K

Values exactly as published — see where the data comes from.