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Descriptor English: Fermium
Descriptor Spanish: Fermio
Descriptor fermio
Scope note: Actínido radiactivo sintético con símbolo atómico Fm y número atómico 100. Sus isótopos conocidos varían entre 244-254 y 256-258. Sus valencias pueden ser +2 ó +3. Al igual que en el caso del einstenio, fue descubierto en 1952 en los restos de una explosión termonuclear.
Descriptor Portuguese: Férmio
Descriptor French: Fermium
Tree number(s): D01.268.271.100.275
D01.268.556.266
D01.496.749.305.100.275
D01.552.020.394
D01.552.544.266
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D005286
Scope note: A man-made radioactive actinide with atomic symbol Fm, and atomic number 100. 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.
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
Registry Number: Q70I3KBF4W
CAS Type 1 Name: Fermium
DeCS ID: 29391
Unique ID: D005286
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1966/01/01
Date of Entry: 1999/01/01
Revision Date: 2017/04/25
Fermium - Preferred
Concept UI M0008343
Scope note A man-made radioactive actinide with atomic symbol Fm, and atomic number 100. 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.
Preferred term Fermium



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