The principal quantum number, n, describes the energy level of a particular orbi

Question

The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron. The angular momentum quantum number (l), the magnetic quantum number (ml), and the spin quantum number (ms) have strict rules which govern the possible values. Identify allowable combinations of quantum numbers for an electron. Select all that apply.

n=3, l=-2, ml=-2, ms=+1/2

n = 4, ?= 1, m?= 2, ms= 1/2

n = 2, ?= 1, m?=

Explanation / Answer

the 5th and 6th are allowed....others aren't...I'll explain
n denotes the number of orbit in which the electron revolves
n can have values 1,2,3 etc.....
? depends on the subshelll in which the electron is in...the values of ? are as follows;
for s subshell ?=0
for p subshell ?=1
for d subshell ?=2
for f subshell ?=3

the values of m? depends upon ?...
The value for m? is -? to 0 to +?
for s subshell ?=0 ; m? = 0
for p subshell ?=1 ; m? = -1,0,1
for d subshell ?=2 ;m? = -2,-1,0,1,2
for f subshell ?=3 ; m?= -3,-2,-1,0,1,2,3

spin quantum number can have two values which depend upon the direstion of spin of the electron
for clockwise spin , s=+1/2
for anti-clockwise spin , s= -1/2

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