Question

hai frndz pls help me
◆ if u know { why} in the periodic table ◆
1st period why only 2 elements
2nd periode only 8 elements and 3rd peroid only 8 elements and 4th period only 18elements
5th period only 18 elements
6th period only 32 elements
7th period only 32 elements
I need a quality ans
with {reason}

Answer 1

$\bold{\boxed{Answer}}$

In the perodic table, the periods are classified on the basis of the maximum number of shells that they have.
• As in the first period, the maximum number of shells is One.
• In the second period, no element has more than 2 shells i.e. tha max atomic Number is 10 (2+8), that is of Neon.
• similarly, in every period the max. no. of shells classify the number of elements.

$\textbf{Also}$

• the discovery of elements is still going on and synthetic elements are also added to the modern perodic table.
• thus, chances of getting a new period i.e. the eighth period exists.

Thank u.!!!...☺️