Identify the pair of elements in which the di | vedclass

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(D) $1.$ $C$ and $N$ are in the same period. The atomic radius of $C$ is $\approx 77 \ pm$ and $N$ is $\approx 75 \ pm$. The difference is $\approx 2

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$Li, Be$

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(D) $1.$ $C$ and $N$ are in the same period. The atomic radius of $C$ is $\approx 77 \ pm$ and $N$ is $\approx 75 \ pm$. The difference is $\approx 2 \ pm$. $2.$ $O$ and $F$ are in the same period. The atomic radius of $O$ is $\approx 73 \ pm$ and $F$ is $\approx 71 \ pm$. The difference is $\approx 2 \ pm$. $3.$ $P$ and $S$ are in the same period. The atomic radius of $P$ is $\approx 110 \ pm$ and $S$ is $\approx 103 \ pm$. The difference is $\approx 7 \ pm$. $4.$ $Li$ and $Be$ are in the same period. The atomic radius of $Li$ is $\approx 152 \ pm$ and $Be$ is $\approx 111 \ pm$. The difference is $\approx 41 \ pm$. Comparing all pairs, the difference in atomic radii is maximum for the pair $(Li, Be)$.

Identify the pair of elements in which the difference in atomic radii is maximum.

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