What is the electronic configuration of elements of $I I I$ rd group

1 s^{2}, 2 s^{2} 2 p s^{3}

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1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1}

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1 s^{2}, 2 s^{2} 2 p^{6}

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1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{1}

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Solution

The correct option is B $1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1}$
$1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{1}$
As it is p block element therefore the group is $12 + 1 = 13$ (III A group)

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