Total number of elements present in 3rd and 4th period of th... — Chemistry | Mockzy

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Total number of elements present in 3rd and 4th period of the periodic table respectively are:

18 and 32

8 and 8

18 and 18

8 and 18

The general outer electronic configuration of the f-block elements is:

In the modern long-form of the periodic table, total number of the horizontal ro

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