The size of the iso-electronic species

eSaral Updated on:
Question:

The size of the iso-electronic species $\mathrm{Cl}^{-}, \mathrm{Ar}$ and $\mathrm{Ca}^{2+}$ is affected by :

  1. azimulthal quantum number of valence shell

  2. electron-electron interaction in the outer orbitals

  3. principal quantum number of valence shell

  4. nuclear charge

Correct Option: , 4

Solution:

Iso-electronic species differ in size due to different effective nuclear charge.

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