Chemistry-Atomic Radius
NEET Chemistry Atomic Radius Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 11
Assertion (A): The atomic radius cannot be precisely determined for individual atoms. | Reason (R): The electron cloud surrounding an atom does not have a sharp boundary.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true, but R is false.
D
A is false.
Correct Answer
Option A
Detailed Explanation
The electron cloud's lack of a sharp boundary makes precise measurement of atomic radius impossible, supporting the assertion.
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