anonymous
  • anonymous
Identify the following element- Four electrons in the third main energy level.
Chemistry
katieb
  • katieb
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mayankdevnani
  • mayankdevnani
Silicon... @amishra
anonymous
  • anonymous
Electron configuration of Si; \[1s ^{2} 2s ^{2} 2p ^{6} 3s ^{2} 3p ^{2}\] If you draw an Energy Diagram(for Si) you'll see that the 3rd energy level (3s,3p,4s and 3d) has 4 electrons in total.
anonymous
  • anonymous
I am sorry, I didn't understand. :/

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anonymous
  • anonymous
|dw:1347892907941:dw| This is an energy diagram for Si. As you can see the 3rd energy level (n=3) has 2electrons in 3s and 2 electrons in 3p. 2+2=4 Did this help?
anonymous
  • anonymous
Oh thank you! I finally got it!! :D Thank you so much!
anonymous
  • anonymous
you're welcome (:

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