Klor
17
Cl
Gruppe
17
Periode
3
Blokk
p
Protoner
Elektroner
Nøytroner
17
17
18
Generelle egenskaper
Atomnummer
17
Atomvekt
35,453
Massetall
35
Kategori
Halogener
Farge
Gul
Radioaktiv
Nei
From the Greek word chloro, greenish yellow
Krystallstruktur
Base Centered Orthorhombic
Historie
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.
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.
Elektroner per energinivå
2, 8, 7
Elektronkonfigurasjon
[Ne] 3s2 3p5
Tree frogs have a chlorine compound in their skin that is a very powerful pain killer
Fysikalske egenskaper
Fase
Gass
Tetthet
0,003214 g/cm3
Smeltepunkt
171,65 K | -101,5 °C | -150,7 °F
Kokepunkt
239,11 K | -34,04 °C | -29,27 °F
Smeltevarme
3,2 kJ/mol
Fordampningsvarme
10,2 kJ/mol
Spesifikk varmekapasitet
0,479 J/g·K
Forekomst i jordskorpa
0,017%
Forekomst i universet
0,0001%
CAS Number
7782-50-5
PubChem CID Number
24526
Atomegenskaper
Atomradius
79 pm
Kovalent radius
102 pm
Elektronegativitet
3,16 (Pauling-skalaen)
Ioniseringsenergi
12,9676 eV
Molart volum
22,7 cm3/mol
Termisk ledningsevne
0,000089 W/cm·K
Oksidasjonstilstander
-1, 1, 2, 3, 4, 5, 6, 7
Bruksområder
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.
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
Isotoper
Stabile isotoper
35Cl, 37ClUstabile isotoper
28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 36Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl