Oksigen

8
O
Kumpulan
16
Kala
2
Blok
p
Proton
Elektron
Neutron
8
8
8
Ciri-Ciri Am
Nombor atom
8
Berat atom
15.9994
Nombor jisim
16
Kategori
Bukan logam
Warna
Tidak berwarna
Radioaktif
Tidak
Daripada perkataan Yunani oxys, asid, dan genes, membentuk
Struktur hablur
Pusat Tapak Monoklinik
Sejarah
Carl Wilhelm Scheele obtained oxygen by heating mercuric oxide and nitrates in 1771, but did not publish his findings until 1777.

Joseph Priestley also prepared this new air by 1774.

The name oxygen was coined in 1777 by Antoine Lavoisier, whose experiments with oxygen helped to discredit the then-popular phlogiston theory of combustion and corrosion.
Bilangan elektron per petala
2, 6
Konfigurasi elektron
[He] 2s2 2p4
O
Green and red colors in the Aurora Borealis are caused by oxygen atoms
Ciri-Ciri Fizikal
Fasa
Gas
Ketumpatan
0.001429 g/cm3
Takat lebur
54.36 K | -218.79 °C | -361.82 °F
Takat didih
90.2 K | -182.95 °C | -297.31 °F
Haba pelakuran
0.222 kJ/mol
Haba pengewapan
3.41 kJ/mol
Muatan haba molar
0.918 J/g·K
Banyak pada kerak bumi
46%
Banyak pada alam semesta
1%
Vial
Kredit imej: Images-of-elements
Vial of glowing ultrapure oxygen
Nombor CAS
7782-44-7
PubChem CID Number
977
Ciri-Ciri Atom
Jejari atom
48 pm
Jejari kovalen
66 pm
Keelektronegatifan
3.44 (Skala Pauling)
Kebolehan mengion
13.6181 eV
Isipadu atom
14.0 cm3/mol
Daya pengaliran terma
0.0002674 W/cm·K
Keadaan pengoksidaan
-2, -1, 1, 2
Aplikasi
Pure oxygen is frequently used to help breathing in patients with respiratory ailments.

Oxygen is used in oxyacetylene welding, as an oxidant for rocket fuel, and in methanol and ethylene oxide production.

It is also used in the production of steel, plastics and textiles.

Plants and animals rely on oxygen for respiration.
Oxygen gas can be toxic at elevated partial pressures, leading to convulsions and other health problems
Isotop
Isotop stabil
16O, 17O, 18O
Isotop tidak stabil
12O, 13O, 14O, 15O, 19O, 20O, 21O, 22O, 23O, 24O, 25O, 26O, 27O, 28O