Periodic Table of the Elements: Chlorine

Name: Chlorine
Symbol: Cl
Atomic Number: 17
Atomic Mass: 35.453 +/- 0.001
Atomic Volume: 17.38 cc/mol
Discovered By: Scheele
Discovery Date: 1774
Origin of Name: Chlorine (Greek) chloros (greenish-yellow)
Toxicity: Toxic. Attacks the respiratory tract and leads to pulmonary edema. Hydrogen chloride and chlorinated hydrocarbons are toxic. Alkali metal chlorides are not toxic in small amounts.
Summary: Chlorine is not found free in nature, but mainly as sodium chloride. Chlorine is a diatomic gas (Cl 2 ).


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August