AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Which one of the following indicates correct order of atomic size of the given elements?
- A Li \(>\) B \(>\) F \(>N\)
- B N \(>\) F \(>\) Li \(>\) B
- C F \(>\mathrm{N}>\mathrm{B}>\mathrm{Li}\)
- D Li \(>\) B \(>\) N \(>\) F
Answer & Solution
Correct Answer
(D) Li \(>\) B \(>\) N \(>\) F
Step-by-step Solution
Detailed explanation
The atomic size/radius decreases in a period from left to right. Thus, \({ }_3 \mathrm{Li}>{ }_5 \mathrm{~B}>{ }_7 \mathrm{~N}>{ }_9 \mathrm{~F}\)
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