Chlór

17
Cl
Skupina
17
Perióda
3
Orbitál
p
Protóny
Elektróny
Neutróny
17
17
18
Hlavné vlastnosti
Protónové číslo
17
Atómová hmotnosť
35,453
Hmotnostné číslo
35
Kategória
Halogény
Farba
Žltá
Rádioaktívny
Nie
From the Greek word chloro, greenish yellow
Kryštálová sústava
Dolno-centrovaný ortorhombický
História
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.
Elektróny v obale
2, 8, 7
Elektrónová konfigurácia
[Ne] 3s2 3p5
Cl
Tree frogs have a chlorine compound in their skin that is a very powerful pain killer
Fyzikálne vlastnosti
Skupenstvo
Plyny
Hustota
0,003214 g/cm3
Teplota topenia
171,65 K | -101,5 °C | -150,7 °F
Teplota varu
239,11 K | -34,04 °C | -29,27 °F
Skupenské teplo topenia
3,2 kJ/mol
Skupenské teplo varu
10,2 kJ/mol
Tepelná kapacita
0,479 J/g·K
Množstvo v zemskej kôre
0,017%
Množstvo vo vesmíre
0,0001%
Pure
Zdroje obrázkov: Images-of-elements
Pure liquid chlorine under a pressure of 8 bars
Registračné číslo CAS
7782-50-5
PubChem CID Number
24526
Atómové vlastnosti
Atómový polomer
79 pm
Kovalentný polomer
102 pm
Elektronegativita
3,16 (Paulingova stupnica)
Ionizačný potenciál
12,9676 eV
Atómový objem
22,7 cm3/mol
Tepelná vodivosť
0,000089 W/cm·K
Oxidačné stavy
-1, 1, 2, 3, 4, 5, 6, 7
Aplikácie
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
Izotopy
Stabilné izotopy
35Cl, 37Cl
Nestabilné izotopy
28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 36Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl