Nitrogen

7
N
Golongan
15
Periode
2
Blok
p
Proton
Elektron
Neutron
7
7
7
Sifat Umum
Nomor atom
7
Massa atom
14,0067
Nomor massa
14
Kategori
Nonlogam lainnya
Warna
Tak berwarna
Radioaktif
Tidak
Dari kata Latin nitrum, bahasa Yunani Nitron, soda asli; dan gen, membentuk
Struktur kristal
Segienam Sederhana
Sejarah
Nitrogen is considered to have been discovered by Scottish physician Daniel Rutherford in 1772, who called it noxious air or fixed air.

It was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish and Joseph Priestley.

In 1790 the French chemist Jean-Antoine-Claude Chaptal named the element nitrogen.
Elektron per kulit
2, 5
Konfigurasi elektron
[He] 2s2 2p3
N
Nitrogen is present in all living organisms, in proteins, nucleic acids and other molecules
Sifat Fisika
Fase
Gas
Kepadatan
0,0012506 g/cm3
Titik lebur
63,15 K | -210 °C | -346 °F
Titik didih
77,36 K | -195,79 °C | -320,42 °F
Kalor peleburan
0,36 kJ/mol
Kalor penguapan
2,79 kJ/mol
Kapasitas kalor molar
1,04 J/g·K
Kelimpahan di kerak bumi
0,002%
Kelimpahan di alam semesta
0,1%
Vial
Kredit Gambar: Images-of-elements
Vial of glowing ultrapure nitrogen
Nomor CAS
7727-37-9
PubChem CID Number
947
Sifat Atom
Jari-jari atom
56 pm
Jari-jari kovalen
71 pm
Elektronegativitas
3,04 (Skala Pauling)
Potensi Ionisasi
14,5341 eV
Volume atom
17,3 cm3/mol
Kondusivitas termal
0,0002598 W/cm·K
Bilangan oksidasi
-3, -2, -1, 1, 2, 3, 4, 5
Aplikasi
Nitrogen is used to produce ammonia and fertilizers, vital for current food production methods.

Liquid nitrogen is used as a refrigerant.

Nitric acid is used as an oxidizing agent in liquid fueled rockets.

Nitrogen is a constituent of molecules in every major drug class in pharmacology and medicine.
Rapid release of nitrogen gas into an enclosed space can displace oxygen, and therefore represents an asphyxiation hazard
Isotop
Isotop stabil
14N, 15N
Isotop tidak stabil
10N, 11N, 12N, 13N, 16N, 17N, 18N, 19N, 20N, 21N, 22N, 23N, 24N, 25N