Klor

17
Cl
Golongan
17
Periode
3
Blok
p
Proton
Elektron
Neutron
17
17
18
Sifat Umum
Nomor atom
17
Massa atom
35,453
Nomor massa
35
Kategori
Halogen
Warna
Kuning
Radioaktif
Tidak
From the Greek word chloro, greenish yellow
Struktur kristal
Ortorombik Berpusat-dasar
Sejarah
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.
Elektron per kulit
2, 8, 7
Konfigurasi elektron
[Ne] 3s2 3p5
Cl
Tree frogs have a chlorine compound in their skin that is a very powerful pain killer
Sifat Fisika
Fase
Gas
Kepadatan
0,003214 g/cm3
Titik lebur
171,65 K | -101,5 °C | -150,7 °F
Titik didih
239,11 K | -34,04 °C | -29,27 °F
Kalor peleburan
3,2 kJ/mol
Kalor penguapan
10,2 kJ/mol
Kapasitas kalor molar
0,479 J/g·K
Kelimpahan di kerak bumi
0,017%
Kelimpahan di alam semesta
0,0001%
Pure
Kredit Gambar: Images-of-elements
Pure liquid chlorine under a pressure of 8 bars
Nomor CAS
7782-50-5
PubChem CID Number
24526
Sifat Atom
Jari-jari atom
79 pm
Jari-jari kovalen
102 pm
Elektronegativitas
3,16 (Skala Pauling)
Potensi Ionisasi
12,9676 eV
Volume atom
22,7 cm3/mol
Kondusivitas termal
0,000089 W/cm·K
Bilangan oksidasi
-1, 1, 2, 3, 4, 5, 6, 7
Aplikasi
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
Isotop
Isotop stabil
35Cl, 37Cl
Isotop tidak stabil
28Cl, 29Cl, 30Cl, 31Cl, 32Cl, 33Cl, 34Cl, 36Cl, 38Cl, 39Cl, 40Cl, 41Cl, 42Cl, 43Cl, 44Cl, 45Cl, 46Cl, 47Cl, 48Cl, 49Cl, 50Cl, 51Cl