Question

Answer the following questions. (Any one) (5)

1) On the basis of electronic configuration around the nucleus, how will you identify?

i. Chemically Similar Elements.


ii. First Elements of A Period.


iii. It belongs to Alkali Metals


iv. A Group of Halogen.


v. A Group of inert Gases.​

Answer 1

i. chemically similar elements have similar outer electronic configuration

ii. first element of a period has only s electrons .. they are present in k shell

iii. alkali metals have 1 electron in their Valence shell or outermost shell..

iv. halogens has 7 electrons in their Valence shell.

v. inert gases have completely filled Valence electron.