heptavalent
Adjective
Meaning
Having seven units of attractive force or affinity; -- said of heptad elements or radicals.
Source: Webster's dictionarySynonyms
heptadic
septivalent
heptadentate
septavalent
heptadecavalent
heptadent
7-valent
seven-valent
heptadentated
Examples
The ionic radius of hexacoordinate heptavalent bohrium is expected to be 58 pm (heptavalent manganese, technetium, and rhenium having values of 46, 57, and 53 pm respectively).