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# The [[systematic element name]] for the chemical element with [[atomic number]] 137 (''symbol'' Uts) |
# The [[systematic element name]] for the chemical element with [[atomic number]] 137 (''symbol'' Uts) |
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====History==== |
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Richard Feyman calculated that the last element where the orbital velocity of an electron would be less than the speed of light based on the Bohr had to be element 137. |
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====Usage notes==== |
====Usage notes==== |
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Revision as of 14:15, 21 November 2016
English
Etymology
Lua error in Module:affix/templates at line 130: The |lang= parameter is not used by this template. Place the language code in parameter 1 instead. Named after Richard Feynman, who pointed out through calculation using classical physics that element 137 is the last stably neutrally-charged element, as elements greater than 137 would need electrons that travel faster than light to become neutral.
Noun
feynmanium (uncountable)
- The systematic element name for the chemical element with atomic number 137 (symbol Uts)
Usage notes
This is not (yet) an official designation, but is a nickname used by some members of the nuclear physics community
Synonyms
- Fy (symbol)
- untriseptium (Uts) (the current official designation for this theoretical element)