Argon es un elemento chimic de symbolo Ar e numero atomic 18.
Illo es le tertie del gases nobile, incolor e inerte como illos, e constitue 0,94% del atmosphera del Terra. Su nomine deriva del greco αργος, que significa inactive (debite a que non es reactive).
Chloro ← Argon → Potassium | |
Apparentia | |
un gas incolor que exhibite un brillantia violette in un campo electric de alte voltage | |
Proprietates atomic | |
Nomine, symbolo, numero | Argon, Ar, 18 |
Serie chimic | gas nobile |
Gruppo, periodo, bloco | 18, 3, p |
Configuration electronic | [Ne] 3s2 3p6 |
Proprietates physic | |
Stato | gas |
Massa molar | 39,948(1) g·mol−1 |
Densitate | (0 °C, 101,325 kPa) 1,784 g/L |
Densitate liquide al p.e. | 1,40 g·cm−3 |
Puncto de fusion | 83,80 K, −189,35 °C, −308.83 °F |
Puncto de ebullition | 87,30 K, −185,85 °C, −302.53 °F |
Puncto triple | 83,8058 K (-189 °C), 69 kPa |
Puncto critic | 150,87 K, 4,898 MPa |
Calor de fusion | 1,18 kJ·mol−1 |
Calor de vaporisation | 6,43 kJ·mol−1 |
Calor specific | 20,786 J·mol−1·K−1 |
Conductivitate thermal | 17,72×10−3 W·m−1·K−1 |
Velocitate de sono | (gas, 27 °C) 323 m·s−1 |
Valores in unitates SI e in le conditiones normal del material (25 °C, 100 kPa) si non indica al contrario. | |
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