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element 107 - 3 dictionary results

element 107

–noun Chemistry, Physics.
unnilseptium.

Origin:
1975–80

un⋅nil⋅sep⋅ti⋅um

[yoo-nil-sep-tee-uhm]
–noun
Chemistry, Physics. provisional name for the transuranic element with atomic number 107. Symbol: Uns
Also called element 107.


Origin:
< L ūn(us) one + nīl nothing + sept(em) seven + NL -ium -ium

element 107

a synthetic element in Group VIIb of the periodic table. It is thought to be chemically similar to the rare metal rhenium.

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