The difference in the number of valence electrons of 'zero' (18) group element and IIA (2) group element is equal to the number of valence electrons of_______.
A
group VIA (16)
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B
group IIIA (13)
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C
group VA (15)
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D
group IVA (14)
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Solution
The correct option is D group VIA (16) Group 0 has 8 valence electrons. Group IIA has 2 valence electrons. Thus difference is of 6 electrons. The group 16 (IVA) has 6 valence electrons. Thus answer is option A.