Find the value of n,l,m for 3p4?

1 Answer
Apr 4, 2018

#3, 1, (-1, 0, +1)#

Explanation:

#"3p"^4# subshell can be written as

#underline( color(white)(.) uarr darr color(white)(.)color(white)(.) uarr color(white)(.) color(white)(.) uarr color(white)(.))#
# color(white)(...) "3p"_"x" color(white)(....)"3p"_"z" color(white)(..) "3p"_"y" color(white)(...)#

Quantum numbers of electrons in this subshell are

  • Principle quantum number #("n") = 3#
    Because it’s subshell of #3^"rd"# shell

  • Angular momentum quantum number #(l) = 1#
    Because it’s a p-subshell.

  • Magnetic momentum quantum number #(m) = +1,0,-1#
    Possible number of magnetic quantum numbers of electrons in a subshell are #2l + 1#. Here #l = 1#. So, #3# magnetic quantum numbers are possible. It ranges from #-l# to #+l#.