Question

Given below are two statements:
Statement I: The metallic radius of Al is less than that of Ga.
Statement II: The ionic radius of Al\(^{3+}\) is less than that of Ga\(^{3+}\).
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are correct
• B. Statement I is correct but Statement II is incorrect
• C. Statement I is incorrect but Statement II is correct
• D. Both Statement I and Statement II are incorrect

Hint:

The metallic radius of an element generally increases down a group. The ionic radius decreases with an increase in positive charge on the ion.

Answer 1

The Correct Option is B

The metallic radius of Al is less than Ga, which is correct. 
The ionic radius of Al\(^{3+}\) is more than Ga\(^{3+}\), making Statement II incorrect.