Question

Assertion : Helium is placed along with inert gases in 'zero' group.
Reason: Due to its chemical inertness and stable electronic configuration
a) Both A and R are correct and R is the correct explanation of A
b) Both A and R are correct but R is not the correct explanation of A.
c) A is correct, R is incorrect.
d) A is incorrect but R is correct​

Answer 1

Answer:

a

Explanation:

He atomic Number is 2

it's E.C is 1s^2

here s orbital is completely filled hence it is stable

Answer 2

Answer:

option B is the correct answer

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