state gov Bihar Police SI (दरोगा) Mock Test Series 2025 General Science Chemistry Periodic Table

The longest and shortest periods in the periodic table are:

1

Longest Period - 1, Shortest Period - 6

2

Longest Period - 6, Shortest Period - 1

3

Longest Period - 18, Shortest Period - 2

4

Longest Period - 2, Shortest Period - 18

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