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General Chemistry

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Moderate

Periodic Element and Stability

CHEM-GGD52R

A gaseous ion $ { E }^{ 2+ }$ has no unpaired electrons in its most stable state. $E$ could be a member of more than one possible periodic groups.

Which groups of the periodic table does the element $E$ belong?

A

VIIB and IIIA .

B

IIA and IIB.

C

VIIIB and IIIA.

D

IIA and VIIB.