What is the electron configuration for silicon (Si)?

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What is the electron configuration for silicon (Si)?

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Answer 1 · 2018-05-25T00:21:32

Well, silicon has $14$ electrons.

Explanation:

We first start by writing the closest noble gas to silicon which has less electrons that it, so that noble gas is neon, which has $10$ electrons.

The configuration becomes:

$[Ne]$

Still, there are $4$ electrons left over. The next shell that will come up is the $3s$ shell, which can hold $2$ electrons. Filling it out, we get:

$[Ne]3s^2$

Finally comes the $3p$ shell, which can hold $6$ electrons. But since here there are only $2$ extra electrons left over, it'll hold $2$ of them. So, the final configuration is:

$[Ne]3s^2\3p^2$

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What is the electron configuration for silicon (Si)?

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