State the electronic configurations of group-$16$ elements.
The elements of group-$16$ have six electrons in their valence shell. The general valence shell electronic configuration is $ns^{2} np^{4}$. The detailed electronic configurations are as follows:
| Element | Electronic configuration |
| ${ }_{8} O$ | $[He] 2 s^{2} 2 p^{4}$ |
| ${ }_{16} S$ | $[Ne] 3 s^{2} 3 p^{4}$ |
| ${ }_{34} Se$ | $[Ar] 3 d^{10} 4 s^{2} 4 p^{4}$ |
| ${ }_{52} Te$ | $[Kr] 4 d^{10} 5 s^{2} 5 p^{4}$ |
| ${ }_{84} Po$ | $[Xe] 4 f^{14} 5 d^{10} 6 s^{2} 6 p^{4}$ |
| ${ }_{116} Lv$ | $[Rn] 5 f^{14} 6 d^{10} 7 s^{2} 7 p^{4}$ |
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