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(A) .^(20)Ne and .^(22)Ne are isotones. ...

(A) `.^(20)Ne` and `.^(22)Ne` are isotones.
(R) Noble gases do not exist as isotopes as they are not reactive.

A

Both (R) and (A) are true and reason is the correct explanation of assertion.

B

Both (R) and (A) are true but reason is not correct explanation of assertion

C

Assertion (A) is true but reason (R) is false

D

Assertion (A) and reason (R) both are false

Text Solution

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The correct Answer is:
D
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