Question

what is shell and sub shell?​

Answer 1

Answer:

The "shell" is the principal quantum number, the number found to the side of a quantum number energy starting from 1 and going up.

The sub shell are the orientations and shapes for your orbitals , going in order by s,p,d,f...

Answer 2

Answer:

• The "shell" is the Principal Quantum Number, the number found to the side of a quantum number energy diagram usually as n=(whole number) starting from 1 and going up.
• The "sub shells" are the orientations and shapes for your orbitals, going in order by s,p,d,f...