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TS EAMCET · Chemistry · Chemical Bonding and Molecular Structure

In which of the following species, the ratio of s-electrons to p -electrons is same?

  1. A \(\mathrm{K}^{+}, \mathrm{Cr}^{3+}\)
  2. B \(\mathrm{Zn}, \mathrm{Fe}^{2+}\)
  3. C \(\mathrm{Zn}, \mathrm{Cr}^{3+}\)
  4. D \(\mathrm{Na}^{+}, \mathrm{K}^{+}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\mathrm{K}^{+}, \mathrm{Cr}^{3+}\)

Step-by-step Solution

Detailed explanation

The ratio of s-elections and p-electron can be determined by electronic configuration. \(\mathrm{K}^{+}=1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}{ }^6\). The ratio of s electron to p-electron is \(6: 12\) which simplifies to \(1: 2\)…