Question

How to calculate :-
Electronic configuration
Valency
Valence Electron

Answer 1

The valency of an atom is equal to the number of electrons in the outer shell if that number is four or less. Otherwise, the valency is equal to eight minus the number of electrons in the outer shell. Once you know the number of electrons, you can easily calculate the valency.

The valency of an element is determined by the number of valence electrons present in the outermost shell of its atom. The number of electrons lost or gained (or shared) by one atom of an element to achieve the nearest inert gas electron configuration, gives us the valency of the element.

Answer 2

steps to calculate electronic configuration are

1 find your atoms atomic number

2 determine the charge of the atom

3 memorize the basic list of orbitals

4 understand electron configuration notation

5 memorize the order of the orbitals

6 fill in the orbitals according to the number of electrons in your atom

hope it helps you