Periodic Table

Chlorine

Atomic Number: 17

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Overview
PropertyValueUnits

Atomic Mass

35.453

Density

3.214

g/cckg/m3lb/in3
Thermal Properties

Thermal Properties

PropertyValueUnits

Melting Point

-101°C

K°C°F°R

Boiling Point

-35°C

K°C°F°R

Critical Pressure

7.991 MPa

MPaAtmPSI

Critical Temperature

416.9°C

K°C°F°R

Heat of Fusion

3.2 kJ/mol

kJ/molcal/mol

Heat of Vaporization

10.2 kJ/mol

kJ/molcal/mol

Specific Heat

478.2 J/kg·K

J/kg·K

Thermal Conductivity

0.0089 W/m·K

W/m·K
Electon Configuration

Electron Structure

[Ne] 3s2 3p5

Shell Arrangement

KLMNOPQ
2870000
LevelS OrbitalP OrbitalD OrbitalF Orbital
Level 1
Level 2
History

Year Discovered

1774

Isotopes
IsotopeCommon NameSymbolMassStatusAbundanceHalf-lifeDecay modeDecay EnergyNuclear SpinMagnetic Moment

17

Cl

35

ChlorineCl35Stable75.78-----

17

Cl

37

ChlorineCl37Stable24.22-----

Isotopic mass data for stable isotopes is from:
G. Audi, A.H. Wapstra in Nuclear Physics A, 1993, 565, 1-65
and
G. Audi, A.H.Wapstra in Nuclear Physics A, 1995, 595 409-480.

Natural abundance data is from:
K.J.R. Rosman, P.D.P. Taylor in Pure Appplied Chemistry, 1999, 71, 1593-1607.

 

Occurance
In the Universe0.0001%
In the Sun0.0008%
In Meteorites0.037%
In the Earth's Crust0.017%
In Seawater2%
In the Human Body0.12%
Models

Pictures, videos and 3D models of the element

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