Question

How many S and P electrons are present in an an element of atomic number is 27​

Answer 1

Answer:

There are 4 electrons in s shell and 12 electrons in p shell

Answer 2

configuration is [Ar]3d

7

4s

2

Valence shell is 3d

7

the value of n is 3

so the value of l varies 0 to 2 but for valence shell electrons value of l is 2

All subshells are full filled except 3d

7

and there are 7 electrons present in 3d

7

so 2 electrons are unpaired.