fermium
Extremely RareTechnical/Scientific
Definition
Meaning
A synthetic, highly radioactive metallic chemical element (symbol Fm, atomic number 100) in the actinide series.
Specifically, it is a transuranium element, produced artificially by bombarding lighter elements with neutrons. Its isotopes are unstable and decay rapidly.
Linguistics
Semantic Notes
The word is exclusively a proper noun referring to the element itself. It has no other common meanings or metaphorical uses.
Dialectal Variation
British vs American Usage
Differences
No usage differences; identical in both scientific registers.
Connotations
None beyond the scientific.
Frequency
Virtually unused outside specialized contexts like nuclear chemistry, physics, or history of science.
Vocabulary
Collocations
Grammar
Valency Patterns
[Element] fermium was discovered in 1953.Scientists studied [isotope] fermium-255.Vocabulary
Synonyms
Strong
Neutral
Weak
Usage
Context Usage
Academic
Used in advanced chemistry and nuclear physics papers.
Everyday
Not used.
Technical
Core term in nuclear chemistry, materials science, and radiochemistry.
Examples
By CEFR Level
- Fermium is a man-made element.
- The isotope fermium-257 has a half-life of about 100 days.
- Researchers succeeded in synthesising fermium by bombarding plutonium with neutrons in a high-flux nuclear reactor.
Learning
Memory Aids
Mnemonic
Fermium: named after Enrico FERMI, the physicist. Think 'FERMI's element' (Fm).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation is 'фермий' (fermiy). No false friends, but the word is highly specialized.
Common Mistakes
- Misspelling as 'ferium' or 'firmium'.
- Mispronouncing as /ˈfɜːrmɪəm/ with a strong 'r'.
Practice
Quiz
What is the atomic number of fermium?
FAQ
Frequently Asked Questions
No, fermium is a synthetic element and does not occur naturally on Earth.
It was first identified by a team led by Albert Ghiorso in 1952 from debris of the first hydrogen bomb test.
It has no practical applications outside basic scientific research due to its high radioactivity and difficulty of production.
Yes, like all highly radioactive materials, fermium poses significant health risks and requires specialised handling.