Question

Answer it guys plz______​

Answer 1

Answer:

Electronic distribution as per orbit has been given as :

M : 2 , 8 , 18 , 3

It's better to predict the group of that element by seeing it's orbital electronic configurations. The orbital electronic configurations can be written as follows :

$M : {1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{10} {4p}^{1}$

Since the last electron has been occupied in the p orbital of the element, hence the element is from P - Block in the Periodic Table. So there are 3 valence electrons in 4th shell .

The rule for prediction of group for P block elements is :

Group = 10 + (electrons in valence shell)

=> Group = 10 + (1 + 2)

=> Group = 13

So final answer is Group 13.

Answer 2

Electronic distribution as per orbit has been given as :

$\leadsto{\purple{M : {1s}^{2} {2s}^{2} {2p}^{6} {3s}^{2} {3p}^{6} {4s}^{2} {3d}^{10} {4p}^{1} }}$

The last electron has been occupied in the p orbital of the element.

Hence the element is from P - Block.

Rule for prediction of group for P block elements -

Group = 10 + valence electrons

=> Group = 10 + 1

=> Group = 11