Question

list the period in modern periodic table

Answer 1

There are 7 periods in Modern Periodic Table
In First period has only 2 elements and is known as the shortest period.
In Second and third period there are 8 elements and is known as short period.
The 4th and 5th periods are long periods,having 18 elements in them.
The 6th period is the longest period containing 32 elements.
The 7th period is an incomplete period .

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