Klor

17
Cl
Skupina
17
Perioda
3
Blok
p
Protons
Electrons
Neutrons
17
17
18
General Properties
Vrstno število
17
Atomska teža
35,453
Mass Number
35
Kategorija
Halogeni
Barva
Rumena
Radioactive
Ne
From the Greek word chloro, greenish yellow
Kristalna struktura
Osnovno centrirana ortorombska
Zgodovina
Around 1630, chlorine was recognized as a gas by the Belgian chemist and physician Jan Baptist van Helmont.

Elemental chlorine was first prepared and studied in 1774 by Swedish chemist Carl Wilhelm Scheele.

By 1810, the scientific consensus was that chlorine was actually a compound that contained oxygen.

In 1811, Sir Humphry Davy concluded the new gas was in fact a new element.
Electrons per shell
2, 8, 7
Razporeditev elektronov
[Ne] 3s2 3p5
Cl
Tree frogs have a chlorine compound in their skin that is a very powerful pain killer
Physical Properties
Faza snovi
Plin
Gostota
0,003214 g/cm3
Tališče
171,65 K | -101,5 °C | -150,7 °F
Vrelišče
239,11 K | -34,04 °C | -29,27 °F
Talilna toplota
3,2 kJ/mol
Izparilna toplota
10,2 kJ/mol
Toplotna kapaciteta
0,479 J/g·K
Abundance in Earth's crust
0,017%
Abundance in Universe
0,0001%
Pure
Zasluge za slike: Images-of-elements
Pure liquid chlorine under a pressure of 8 bars
CAS Number
7782-50-5
PubChem CID Number
24526
Atomic Properties
Atomski polmer
79 pm
Kovalentni polmer
102 pm
Elektronegativnost
3,16 (Paulingova lestvica)
Ionization Potential
12,9676 eV
Atomic Volume
22,7 cm3/mol
Toplotna prevodnost
0,000089 W/cm·K
Oksidacijska stanja
-1, 1, 2, 3, 4, 5, 6, 7
Applications
Chlorine is used for producing safe drinking water.

It is also extensively used in the production of paper products, dyestuffs, textiles, petroleum products, medicines, antiseptics, insecticides, food, solvents, paints, plastics, and many other consumer products.

Chlorinated compounds are used mostly for sanitation, pulp bleaching, disinfectants, and textile processing.
Elemental chlorine at high concentrations is extremely dangerous and poisonous
Isotopes
Stable Isotopes
35Cl, 37Cl
Unstable Isotopes
28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 36Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl