Question

Choose the correct option from the following:
Assertion: electronic configuration tells us about the no. of electrons.
Reason:it helps us to know the valency of the element.
(a) if both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
(b) if both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
(c) if Assertion is correct but Reason is incorrect.
(d) if Assertion is incorrect but Reason is correct.
(e) if Assertion and Reason both are incorrect.

Answer 1

Explanation:

d... because EC is placing the electrons in their shells...

Ans : D