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(Q146)
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Revision as of 02:20, 9 February 2023 by
Baskaufs
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Removed reference from claim:
date of discovery
(P13)
: 1868)
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Statements
instance of
element
0 references
atomic number
2
0 references
atomic mass
4.002602
0 references
abbreviation
He
0 references
date of discovery
1868
0 references