The 3rd energy level is the highest occupied energy level for chlorine with seven electrons.
There are 3 energy levels in chlorine. Look at the shell notation: 2-8-7. So there are 8 electrons in the highest energy level.
The highest occupies energy level in aluminum is the 3rd energy level. Its electron configuration is 1s22s22p63s23p1.
4
Eight.
3
There are 3 energy levels in chlorine. Look at the shell notation: 2-8-7. So there are 8 electrons in the highest energy level.
3.
7 electrons
Sr has two electrons in the highest occupied energy level
2
1s
2s2
The electronic configuration of chlorine is 2,8,7 So there are 7 electrons in the valence shell (or highest energy level).
The highest occupies energy level in aluminum is the 3rd energy level. Its electron configuration is 1s22s22p63s23p1.
Third energy level
the period number tells which is the highest energy level occupied by the electrons
2s