Which of the following statements concerning


Which of the following statements concerning the quantum numbers are


(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.


Option (i) and (iv) are the answers.

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