element 107

- 3 dictionary results

–noun Chemistry, Physics.

Origin:
1975–80

un⋅nil⋅sep⋅ti⋅um

[yoo-nil-sep-tee-uh

–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

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Encyclopedia

element 107

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

Learn more about element 107 with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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