" The number of electrons in "Mg" ,having n+l =3?

The number of electrons in Na, having n+l =3

Write down electronic configuration of Fe^(3+) ion and anwer the following: (i) What is the number of electrons having n+l=3 in it? (ii) How many electrons in it have n=3 and m=0 ? (iii) How many electrons in it have l=1 ? What is the number of electrons in M-shell?

Write the electronic configuration of chromium (Z = 24) and predict in it (i) number of subshells (ii) number of electrons in subshell having l = 0 (iii) number of electrons having n + l value equal to 3 (iv) number of electrons in highest value of n.

Calculate the total number of electrons for Mn having n+l+m=2

Maximum number of electrons in an orbital having n = 4 and l = 2 are :

Total number of electrons having n + l = 3 in Cr(24) atom in its ground state is.