Canadian Medical Guide > Chemicals and Drugs > Inorganic Chemicals > Elements > Actinoid Series Elements > Fermium Terms and Definitions
Fermium
Medical Definition: | Fermium. A man-made radioactive actinide with atomic symbol Fm, atomic number 100, and atomic weight 257. Its known isotopes range from 244-254 and 256-258. Its valence can be +2 or +3. Like einsteinium, it was discovered in 1952 in the debris from a thermonuclear explosion. | |
Guide Notes: | man-made radioactive element; IM | |
CAS Type 1 Name: | CAS Number: | 7440-72-4 |
Fermium Medical Definitions and Terms
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