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SAT® Subject Test in Chemistry

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Moderate

Electron Configuration of Chlorine

SATCHM-4EEKKK

What is the electron configuration for chlorine?

A

$1s^22s^22p^63s^23p^5$

B

$[Ar] \ 4s^1$

C

$1s^22s^22p^63s^23p^64s^23d^5$

D

$1s^22s^22p^1$

E

$[Kr] \ 5s^24d^{10}5p^2$