Clor
17
Cl
Grup
17
Període
3
Bloc
p
Protons
Electrons
Neutrons
17
17
18
Propietats Generals
Nombre atòmic
17
Massa atòmica
35,453
Nombre de massa
35
Categoria
Halògens
Color
Groc
Radioactiu
No
From the Greek word chloro, greenish yellow
Estructura cristal·lina
Cos ortoròmbic centrada
Història
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.
Electrons per capa
2, 8, 7
Configuració electrònica
[Ne] 3s2 3p5
Tree frogs have a chlorine compound in their skin that is a very powerful pain killer
Propietats Físiques
Fase
Gasós
Densitat
0,003214 g/cm3
Punt de fusió
171,65 K | -101,5 °C | -150,7 °F
Punt d'ebullició
239,11 K | -34,04 °C | -29,27 °F
Entalpia de fusió
3,2 kJ/mol
Entalpia de vaporització
10,2 kJ/mol
Capacitat tèrmica específica
0,479 J/g·K
Abundància a l'escorça terrestre
0,017%
Abundància a l'univers
0,0001%
Número CAS
7782-50-5
Número CID de PubChem
24526
Propietats Atòmiques
Radi atòmic
79 pm
Radi covalent
102 pm
Electronegativitat
3,16 (Escala de Pauling)
Potencial d'ionització
12,9676 eV
Volum atòmic
22,7 cm3/mol
Conductivitat tèrmica
0,000089 W/cm·K
Estats d'oxidació
-1, 1, 2, 3, 4, 5, 6, 7
Aplicacions
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
Isòtops
Isòtops estables
35Cl, 37ClIsòtops inestables
28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 36Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl