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Chlor (Cl)

Ordnungszahl: 17
Name: Chlorine
Namensursprung: Greek: chlôros (greenish yellow).
Entdeckung: 1774 by Carl Wilhelm Scheele in Sweden
Beschreibung: Greenish-yellow, disagreeable gas. Never found in free form in nature.
Vorkommen: Salt (sodium chloride, NaCl) is its most common compound. Commercial quantities are produced by electrolysis of aqueous sodium chloride (seawater or brine from salt mines).
Verwendung: Used in water purification, bleaches, acids and many, many other compounds such as chlorofluorocarbons (ClFC).
Gruppe: Halogen
Atomgewicht: 35.4527
Schmelzpunkt: -100.98°C
Siedepunkt: -34.6°C
Dichte bei 293 K: 0.003214 g/cm³
Aggregatszustand bei Raumtemperatur: Gas
Schalen: 2,8,7
Orbitale: [Ne] 3s2 3p5
Valenzen: 1,3,5,7
1. Ionisierungs- potential: 12.9676 V
2. Ionisierungs- potential: 23.81 V
3. Ionisierungs- potential: 39.611 V
Atomradius: 0.97 Å
Spezifische Wärme: 0.48 J/gK
Verdampfungswärme: 10.20 kJ/mol
Schmelzwärme: 3.203 kJ/mol
Thermischer Ausdehnungskoeffizient: --
Röntgenemission Energie / Wellenlänge:
  KA KB LA LB MA MB      
eV 2621.94 2815.67 0 0 0 0      
Å 4.72877 4.40341 0 0 0 0      
Röntgenabsorption Energie / Wellenlänge:
  K L-I L-II L-III M-I M-II M-III M-IV M-V
eV 1823 0 0 202 0 0 0 0 0
Å 6.80117 0 0 61.3789 0 0 0 0 0
Röntgen Fluoreszenz Ausbeute:
  KA KB LA LB MA MB      
  9.4% 0% 0% 0% 0% 0%      
Nuklide:
  Anteil Gewicht Spin Halbwertszeit Zerfallsmodus
Cl35 75.53% 34.9689 3/2   Stable
Cl36 0% 35.9797 2 3.01E05y β-,EC,β+
Cl37 24.47% 36.9659 3/2   Stable
Cl38 0% 38 2 37.2m β-


book | by Dr. Radut