Question

If element with principal quantum no n>4 were not allowed in nature , then the no of possible elements would be 1)60. 2)32. 3)4. 4)64

Answer 1

Answer:60

Explanation:

For calculating ground state of an element we use the formula 2n^2

Therefore..

For n = 1 , 2n^2=2.

Same for n= 2 , 8.

n = 3 , 18.

n = 4 , 32.

Therefore 2+8+18+32=60.

As n>4.