Question

Identify the following element-

Four electrons in the third main energy level.

Answer 1

Silicon... @amishra

Answer 2

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.

Answer 3

I am sorry, I didn't understand. :/

Answer 4

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?

Answer 5

Oh thank you! I finally got it!! :D Thank you so much!

Answer 6

you're welcome (: