Concept information
Término preferido
Francium
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Tipo
-
mesh:Descriptor
Definición
- 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.
Concepto genérico
Etiquetas alternativas
- 15TEQ7D2QF
- 7440-73-5 (Francium)
En otras lenguas
-
francés
-
15TEQ7D2QF
-
7440-73-5 (Francium)
URI
http://data.loterre.fr/ark:/67375/JVR-J4T7QNQL-T
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