Question:
Which of the following statements concerning the quantum numbers are
correct?
(i) The angular quantum number determines the three-dimensional shape of
the orbital.
(ii) The principal quantum number determines the orientation and energy
of the orbital.
(iii) The magnetic quantum number determines the size of the orbital.
(iv) Spin quantum number of an electron determines the orientation of the
spin of the electron relative to the chosen axis.
Solution:
Option (i) and (iv) are the answers.