Periodic Table of the Elements: Francium

Name: Francium
Symbol: Fr
Atomic Number: 87
Atomic Mass: (223)
Atomic Volume: ??? cc/mol
Discovered By: Perey
Discovery Date: 1939
Origin of Name: Francium - named for France
Toxicity: ???
Summary: Produced naturally only by the breakdown of radioactive elements. Francium is the most electropositive element. The longest-lived isotope, Fr-223, has a half-life of 22 minutes.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

© Copyright 1998 David August