He dating
hydridohelium
helonium
radiohelium
carbon dating
helium fusion
helide
antihelium
lambda point
Bk
atomic number 97
helium-3
berkelium
heliumide
radiometric dating
Donald A. Glaser
helium dating
helium-4
Donald Glaser
Glaser
Donald Arthur Glaser
helium unscrambler
americium
Am
atomic number 95
heliox
uranium-235
dihelium
noble gas
helium variable
second sound
inert gas
argonon
radiohydrogen
Hevesy
radiothorium
George Charles Hevesy de Hevesy
George de Hevesy
Dewar
superfluid
superleak
Dewar flask
diproton
radiometric age
Willard Frank Libby
Willard Libby
atomic number 115
element 115
Murray Gell-Mann
ununpentium