The radius of the 2nd orbit of Li2+ is x. The expected radius of the 3rd orbit of Be3– is : (A) 16 x — JEE Mains Chemistry Past Papers Chemistry Question
Question
The radius of the 2nd orbit of Li2+ is x. The expected radius of the 3rd orbit of Be3– is : (A) 16 x (B) 9 4 x (C) 4 9 x (D) 27 x
Answer: D
💡 Solution & Explanation
R = 0.529 × Z n2 n Li ) r( = 0.529 × ) ( = x n Be ) r( = 0.529 × (3)2 n Be n Li ) r( ) r( 2 = ) ( r ) ( r 0 0 n Be ) r( x = 16 n Be ) r( = 16 x
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