Q33 · CSIR-NET Chemistry, June 2017
Paper: CSIR-NET June 2017 · Subject: Inorganic Chemistry · Chapter: Lanthanides and Actinides · Topic: Lanthanides & Actinides – General · Marks: 2 · Difficulty: Easy
Which one of the following pairs has two magic numbers for closed nuclear shells?
(a)8,10
(b)10, 20
(c)50,82
(d)82,130
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
Magic numbers are 2, 8, 20, 28, 50, 82, 126; the pair 50, 82 are both magic.
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