Question

question 13 (1 point)
how many quantum numbers are necessary to designate the location of a particular electron in an atom?
3
4
2
1
5

Explanation:

To designate the 'location' of an electron in an atom, four quantum numbers are used. The principal quantum number ($n$) describes the energy level or shell. The azimuthal quantum number ($l$) indicates the sub - shell (s, p, d, f etc.). The magnetic quantum number ($m_l$) gives the orientation of the orbital within the sub - shell. And the spin quantum number ($m_s$) describes the spin of the electron (either $+\frac{1}{2}$ or $-\frac{1}{2}$).

Answer:

4