p-Block elementsHard

Question

Elements of group 14 :

Options

A.exhibit oxidation state of +4 only
B.exhibit oxidation state of +2 and +4
C.form M-2 and M4+  ions 
D.form M2+ and M4+ ions

Solution

They have valence shell electron configuration ns2 np2 ; so two electrons of p sub shell or four electrons of s and p sub shells can participate in chemical bonding.

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