Rohab Basit · 2026-06-23T14:35:56.400Z

n is 3 is M shell which contains 18 electron half of them spin with 1 by 2 and half spin with negative 1 by 2 so 9 is right ans

Romesa khan · 2026-06-23T14:42:20.933Z

The easy way is +1/2 is the spin of electrons and the electrons find in main shall formula is( n^2 ) n is number of shall and take the square of it the electrons is in this shall

tayyaba gondal · 2026-06-23T17:31:35.185Z

jazakillah