Question

8. The quantum number that tells about the size of orbitals is
a. Principal quantum number
b. Azimuthal quantum number
c. Magnetic quantum number
d. Spin quantum number​

Answer 1

Answer:

option A

Explanation:

The principal quantum number (n) describes the size of the orbital. Orbitals for which n = 2 are larger than those for which n = 1, for example. Because they have opposite electrical charges, electrons are attracted to the nucleus of the atom.