"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.
Below are MeSH descriptors whose meaning is more general than "Francium".
Below are MeSH descriptors whose meaning is more specific than "Francium".
This graph shows the total number of publications written about "Francium" by people in this website by year, and whether "Francium" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.
Below are the most recent publications written about "Francium" by people in Profiles.