Question

The period in which S-Block, P-Block and d-block elements are present

Answer 1

Answer:

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The elements of group 3 ,4 ,5 ,6 ,7 ,8 ,9 ,10 ,11 and 12 belonging to 4th 5th 6th and 7th period in which the last electron enters the d orbital of their respective penultimate shells are called d Block Elements.

Explanation:

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