Oxygenium,[1][2][3][4][5][6][7][8][9][10][11] sive oxygenum,[12][13][14][15][16][17][18][19][20][21] (a Graeco ὀξύς 'acutus, acer, acidus' + γίγνομαι 'gigno', nam olim putabatur oxygenium proprium acidis esse), O abbreviatum, est octavum in systemate periodico elementum chemicum, in capite turmae chalcogeniorum positum.

More information Proprietates generales, Proprietates physicae ...
8 nitrogeniumoxygeniumfluorum


O

S
Proprietates generales
Nomen, Symbolus, Numerus Atomicus oxygenium, O, 8
Grex, Periodus, Glaeba 16, 2, p
Color
transparens
Pondus atomicum15,9994 g·mol1
e- per sphaeram2,6
Proprietates physicae
StatusGas
Punctum liquefactionis54,36K
(-218,79°C, -361,82°F)
Punctum fervoris90,20K
(-182,95°C, -297,31°F)
Punctum criticum154,59 K, 5,043 MPa
Calor latens fusionis0,444kJ·mol1
Capacitas caloris(25°C) 29,378J·mol1·K1
Proprietates atomicae
Structura crystallinaCubica
Affectus oxidationis-2
Radius covalentiae66±2 pm
Radius Van der Waals152 pm
Varietas
Conductus caloris(25 °C) 0,0266  W/(m·K)
Velocitas soni(25 °C) 330 m/s
Close

Sunt oxygenii isotopia stabilia tria:

  • 816O octo neutrona in nucleo habens. 99,8 partes centesimas oxygenii hoc isotopium continet.
  • 817O novem neutrona in nucleo habens.
  • 818O decem neutrona in nucleo habens.

Oxygenium est statu solito gas, liquidum sub 90,19 K fit, solidum sub 54,75 K.

Elementum purum in duabus formis stat: oxygenium O2 et ozonum O3 (Graece ὄζον "olens"), quod est valde venenosum.

Oxida sunt substantiae ex oxygenio et elemento alio factae, exempli gratia monoxidum carbonii CO, oxidum calcii CaO, oxidum ferri Fe2O3 et oxidum hydrogenii H2O, quod est aqua.

Atomus oxygenii depictus.

Notae

Nexus interni

Nexus externi

Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.