The period in which s-block, p-block and d-block elements are present.

1.	The period in which s-block, p-block and d-block elements are present.
Answer» ong>Explanation: 4rth,5th,and 6TH PERIOD have all these block ELEMENTS

Answer»

ong>Explanation:

4rth,5th,and 6TH PERIOD have all these block ELEMENTS

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