Answer:
D. s, p
Explanation:
Principle energy levels number of sublevels number of electrons
1 1s 2n² = 2(1)²= 2
2 2s 2n² = 2(2)²= 8
2p
3 3s 2n² = 2(3)²= 18
3p
3d
when an atom has 2 energy level it has 1 sublevel (s) in 1st energy level 2 sublevels or orbitals (s ans p) in second energy.
The total number of electrons accommodate by atoms with n=2 are 10. two electrons in 1s two electrons in 2s and six electrons in 2p.
