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(B) Atomic radii increase as we move down the group due to the addition of an extra energy shell. Although the nuclear charge also increases,the effec

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$Na, K$

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(B) Atomic radii increase as we move down the group due to the addition of an extra energy shell. Although the nuclear charge also increases,the effect of the addition of a new energy shell predominates. The increase in atomic radius is most significant when moving from $Na$ ($Z=11$,$3s^1$) to $K$ ($Z=19$,$4s^1$) because the transition from the $n=3$ shell to the $n=4$ shell involves a substantial increase in shielding and distance from the nucleus compared to subsequent transitions in the group. Therefore,the largest difference in radii is observed for the pair $Na, K$.

$Column\, A$ (ion)	$Column\, B$ (radius)
$(i)$ $Li^{+}$	$(p)$ $216\, pm$
$(ii)$ $Na^{+}$	$(q)$ $195\, pm$
$(iii)$ $Br^{-}$	$(r)$ $60\, pm$
$(iv)$ $I^{-}$	$(s)$ $95\, pm$

The largest difference in atomic radii is found in the case of which pair?

Similar Questions

Which element from the following has the largest atomic size compared to the other three?

Match $Column\, A$ with $Column\, B$:
$Column\, A$ (ion) $Column\, B$ (radius)
$(i)$ $Li^{+}$ $(p)$ $216\, pm$
$(ii)$ $Na^{+}$ $(q)$ $195\, pm$
$(iii)$ $Br^{-}$ $(r)$ $60\, pm$
$(iv)$ $I^{-}$ $(s)$ $95\, pm$

Which of the following cases has the maximum size ratio of anion to neutral atom?

$K^{+}$,$Cl^{-}$,$Ca^{2+}$ and $S^{2-}$ ions are isoelectronic. The decreasing order of their size is

Which of the following represents the correct order of ionic radii?

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