# Chapter 8 - Electron Configurations and Periodicity - Questions and Problems - Page 332: 8.71

#### Work Step by Step

We know that the electronic configuration of Po is given as $1s^2 2s^2 2p^6 3s^2 3d^{10} 4s^2 4p^6 4d^{10} 5s^2 5d^{10} 6s^2 6p^4$. The electrons with highest quantum number are $6s^2 6p^4$.

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