ununoctium
ScientificExample Sentences
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The new names for the four superheavy, radioactive elements will replace the seventh row’s uninspired placeholders of ununtrium, ununpentium, ununseptium and ununoctium.
From New York Times
The elements currently have the placeholder names ununtrium, ununpentium, ununseptium, and ununoctium, for elements 113, 115, 117 and 118 respectively, but those will change.
From Time
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