Answer
Si : $1s^22s^22p^63s^23p^2$
O : $1s^22s^22p^4$
K : $1s^22s^22p^63s^23p^64s^1$
Ne : $1s^22s^22p^6$
Work Step by Step
The electron configuration is :
Si : $1s^22s^22p^63s^23p^2$ (14 electrons)
O : $1s^22s^22p^4$ (8 electrons)
K : $1s^22s^22p^63s^23p^64s^1$ (19 electrons)
Ne : $1s^22s^22p^6$ (10 electrons)
