Question

b) Quantum numbers of loan electron in outer most orbit of an atom
are given below.
n | ml ms
------------------------
3 0 0 +1/2


Questione
DWhat is the outer most shell of the element ?
1) Write the electron configuration of the element ?
) What is the atomic number of the element ?
iv) What is the valence of the element ?​

Answer 1

The quantum numbers for the outermost shell as given gives us the following answers :-

1) The outermost shell of the element is the 3rd shell or more specifically it is the 3s subshell.

2) The electronic configuration of the element is [Ne] 3s1.

3) The atomic number of the element is 11 which is Sodium (Na) as the electronic configuration is 1s2 2s2 2p6 3s1.

4) The valency of the element is 1.

Sodium is an alkali metal.