element 107

element 107

noun Chemistry, Physics.
Formerly unnilseptium.


Origin:
1975–80

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
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.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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