Periodic Table of the Elements: Potassium

Name: Potassium
Symbol: K
Atomic Number: 19
Atomic Mass: 39.102
Atomic Volume: 43.50 cc/mol
Discovered By: First isolated by Sir Humphrey Davy in 1807
Discovery Date: 1807
Origin of Name: Potassium - (English) Potash, the symbol K comes from (Latin) kalium
Toxicity: Not toxic. See sodium .
Summary: Potassium is not found free in Nature. It ignites spontaneously in contact with water, and rapidly oxidizes in air.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August