Answer:
In the electrosphere, electrons circle around the nucleus, occupying what are called energy levels or electronic layers. Each level has an integer from 1 to 7 or the capital letters K,L,M,N,O,P,Q.
...
Electronic Layers / Energy Levels.
NAME OF LAYER LEVEL NO. MAX. OF IS IN THE LAYER
K 1 2
L 2 8
M 3 18
No. 4 32
I am Brazilian