Silicon has the atomic number 14 so a neutral silicon atom has 14 electrons. Identify its electron configuration. 14
Question
Identify its electron configuration.
Silicon has the atomic number 14, so a neutral silicon atom has 14 electrons.
Solution
The electron configuration of a neutral silicon atom (Si) is determined by the distribution of its 14 electrons among the available energy levels and sublevels. Here's how you can determine it:
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The first two electrons will go in the 1s orbital. The electron configuration is now 1s².
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The next two electrons go in the 2s orbital. The electron configuration is now 1s² 2s².
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The next six electrons will go in the 2p orbital. The electron configuration is now 1s² 2s² 2p⁶.
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The next two electrons go in the 3s orbital. The electron configuration is now 1s² 2s² 2p⁶ 3s².
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The remaining two electrons will go in the 3p orbital. The electron configuration is now 1s² 2s² 2p⁶ 3s² 3p².
So, the electron configuration of a neutral silicon atom is 1s² 2s² 2p⁶ 3s² 3p².
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