Ga belongs to
3rd Period, 13th group
4th Period, 14th group
4th Period, 13th group
3rd Period, 14th group
As we have learnt,
P Block elements -
P block elements comprise those belonging to group 13 to 18 and together with the S block elements are called the main group elements.Outer most configuration varies from ns2 np1 to ns2np6 in each period.
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Ga belongs to group 13 and 4th period.
Therefore, Option(3) is correct
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