Question
Write the names and electronic configuration of group 17 elements.
| Elements | Symbols | Atomic number | Electronic configuration | Brief representation of electronic configuration |
| Fluorine | $F$ | 9 | $1 s^2 2 s^2 2 p^5$ | $[ He ] 2 s^2 2 p^5$ |
| Chlorine | $Cl$ | 17 | $1 s^2 2 s^2 2 p^6 3 s^2 3 p^5$ | $[ Ne ] 3 s^2 3 p^5$ |
| Bromine | $Br$ | 35 | $1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d^{10} 4 s^2 4 p^5$ | $[ Ar ] 3 d^{10} 4 s^2 4 p^5$ |
| Iodine | $I$ | 53 | $\begin{aligned} & 1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d^{10} \\ & 4 s^2 4 p^6 4 d^{10} 5 s^2 5 p^5\end{aligned}$ | $[ Kr ] 4 d^{10} 5 s^2 5 p^5$ |
| Astatine | $At$ | 85 | $\begin{aligned} & 1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d^{10} \\ & 4 s^2 4 p^6 4 d^{10} 4 f^{14} 5 s^2 5 p^6 \\ & 5 d^{10} 6 s^2 6 p^5\end{aligned}$ | $[ Xe ] 4 f^{14} 5 d^{10} 6 s^2 6 p^5$ |
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