9. There are orbitals in the third shell.
A. 4
B. 9
C. 16
D. 25
10. Which quantum number describes the size and energy of the orbital relative to the distance
from the nucleus?
A.angular momentum quantum number.
B. Magnetic quantum numbers.
C. principal quantum number.
D. spin quantum number.
Sana po may magsagot ng tama kasi kailangan ko napo pasahan na namin bukas​