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Descriptor in English: Francium
Descriptor in Spanish: Francio
Descriptor in Portuguese: Frâncio
Descriptor in French: Francium
Tree number(s): D01.268.271.380
D01.268.549.250
D01.268.556.277
D01.496.749.305.380
D01.552.528.328
D01.552.544.277
Scope note: A radioactive alkali metal with the atomic symbol Fr, and atomic number 87. The mass numbers of known isotopes are 204-213, 217-224. Its valence is +1.
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AN analysis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
EC economics
HI history
IP isolation & purification
ME metabolism
PD pharmacology
PK pharmacokinetics
PO poisoning
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UR urine
DeCS UI: 29393
Descriptor UI: D005605
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2017/04/25
Francium - Preferred
Concept UI M0008817
Scope note A radioactive alkali metal with the atomic symbol Fr, and atomic number 87. The mass numbers of known isotopes are 204-213, 217-224. Its valence is +1.
Preferred term Francium



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