Which of the following has the smallest size? | Chemistry | SolveeIt

Question

Which of the following has the smallest size?

${{S}^{2-}}$

$Ar$

$C{{a}^{2+}}$

$T{{i}^{4+}}$

Answer

$T{{i}^{4+}}$

Explanation

Solution

These all ions are isoelectronic $({{e}^{-}}=18)$ and size of isoelectronic species decrease with increase in nuclear charge. Hence, among these, $T{{i}^{4+}}(Z=22)$ will be the smallest.

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Solution