The effective nuclear charge for an electrone for the outermost electron in `(14)/(7)N` is

The effective nuclear charge of N atom is :

" The effective nuclear charge of Nitrogen for 2p electron (last electron) is "

The effective nuclear charge for valence electron in underset(7)" N"^(14) will be

(A) : Mg^(2+) and Al^(3+) are isolectronic but the magnitude of ionic radius of Al^(3+) is less than that in Mg^(2+) . (R ) : The effective nuclear charge on the outermost electrons in Al^(3+) is greater than that in Mg^(2+) .

The effective nuclear charge of an element with three valence electrons is 2.60. What is the minimum atomic number of the element?

The effective nuclear charge of an element with three valence electrons is 2.60. What is the minimum atomic number of the element?