5F
5F can refer to:
- 5f electrons; see Electron configuration
- 5-F-AMT, abbreviation for 5-Fluoro-AMT
- 5F, the production code for the 1979 Doctor Who serial The Armageddon Factor\
- IATA code for Arctic Circle Air
See also
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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