Question

Which quantum number describes the size of the area in which an electron will be found in?
The options are:

a) n
b) ml
c) ms
d) l
e) d

is it a)?

Answer 1

Yes, you are correct. The quantum number that describes the size of the area in which an electron will be found is "n." It is the principal quantum number and it determines the energy level or shell in which the electron is located. The higher the value of n, the larger the size and energy of the orbital.