Question

An element M is having two filled shells, the difference between the
number of electrons in the second and the first shell is equivalent to the
number of electrons in the third shell.
i. How many valence electrons will be there in element M?
ii. Find the number of protons in element M
iii. Write the electronic configuration of element M

Answer 1

Answer:

बिल्ली /बिल्ली /बिल्ली /बिल्ली /बिल्ली /

Explanation:

Answer 2

(i) 'M' has 2 electrons in its valence shell. So it is a metal.

(ii) ????

(iii) The electronic configuration of the element M is \[[Ar]3{d^{10}}4{s^2}4{p^3}\]. The element M is filled in these orbitals by following all the three rules. For the element M, the outermost orbital is 4p. Hence the element M belongs to the p block element.