MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
Which element from following has largest atomic size as compared to other three?
- A S
- B Se
- C Cl
- D Br
Answer & Solution
Correct Answer
(B) Se
Step-by-step Solution
Detailed explanation
The atomic size increases down the group, as a result of increase in the number of quantum shells and decreases along the period from left to right. Therefore, the increasing order of atomic size is \(\mathrm{Cl} \lt \mathrm{S} \lt \mathrm{Br} \lt \mathrm{Se}\).
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