What are the four atomic quantum numbers for each electron in a filled #4s# orbital?

1 Answer
Junaid Mirza
Apr 20, 2018

#4, 0, 0, +-1/2#

Explanation:

Maximum number of electrons an orbital can have is #2#

For both the electrons in an orbital, first 3 quantum numbers are same.

For electrons in #"4s"# orbital

  • #"n" = 4#
    Since electrons are in #"4"^"th"# shell.

  • #l = 0#
    Since electrons are in #"s"#-orbital

  • #"m"_l = 0#
    It describes the orientation of orbital (relative to other orbitals in atom) in free space. For #"s"#-orbital it's #0#

#"m"_s# for one electron is #+1/2# and that of other is #-1/2#

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