Francium
"Francium" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Francium. A radioactive alkali metal with the atomic symbol Fr, atomic number 87, and atomic weight 223. The mass numbers of other known isotopes are 204-213, 217-222, and 224. Its valence is +1.
Descriptor ID |
D005605
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MeSH Number(s) |
D01.268.271.380 D01.268.549.250 D01.268.556.277 D01.552.528.328 D01.552.544.277
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Concept/Terms |
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Below are MeSH descriptors whose meaning is more general than "Francium".
Below are MeSH descriptors whose meaning is more specific than "Francium".
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Below are the most recent publications written about "Francium" by people in Profiles over the past ten years.