The principal quantum number describes ____(a) energy and size of the orbit(b) the shape of the orbital(c) spatial orientation of the orbital(d) the spin of the electronI got this question in an interview.Asked question is from Quantum Mechanical Model of Atom topic in section Structure of Atom of Chemistry – Class 11

The principal quantum number describes ____(a) energy and size of the

1.	The principal quantum number describes ____(a) energy and size of the orbit(b) the shape of the orbital(c) spatial orientation of the orbital(d) the spin of the electronI got this question in an interview.Asked question is from Quantum Mechanical Model of Atom topic in section Structure of Atom of Chemistry – Class 11
Answer» Right answer is (a) energy and size of the orbit To elaborate: AMONG the four quantum NUMBERS, the principal quantum number describes the size and energy of the orbit. It is represented by the symbol “n”. For SHELLS, K, L, M, N and O, n is given by 1, 2, 3, 4 and 5.

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