What are the symbols for the elements with the valence electron configuration: (a) #s^2d^1#, (b) #s^2p^3# and (c) #s^2p^6#?

1 Answer

Answer:

Here's what I get.

Explanation:

You can readily compare the following with the ones you see from http://ptable.com/ (by clicking the "Orbitals" tab):

(a) Valence electron configuration #"s"^2"d"^1#

  • #"Sc": "4s"^2"3d"^1#
  • #"Y":color(white)(l) "5s"^2"4d"^1#
  • #"La": "6s"^2"5d"^1#
  • #"Ce": "6s"^2"4f"^1"5d"^1#
  • #"Gd": "6s"^2"4f"^7"5d"^1#
  • #"Lu": "6s"^2"4f"^14"5d"^1#
  • #"Ac": "7s"^2"6d"^1#
  • #"Pa": "7s"^2"5f"^2"6d"^1#
  • #"U": color(white)(l)"7s"^2"5f"^3"6d"^1#
  • #"Np": "7s"^2"5f"^4"6d"^1#
  • #"Cm": "7s"^2"5f"^7"6d"^1#

(b) Valence electron configuration #"s"^2"p"^3#

The pnictogens:

  • #"N"color(white)(l): "2s"^2"2p"^3#
  • #"P"color(white)(l): "3s"^2"3p"^3#
  • #"As": "4s"^2"3d"^10"4p"^3#
  • #"Sb": "5s"^2"4d"^10"5p"^3#
  • #"Bi": "6s"^2"4f"^14"5d"^10"6p"^3#
  • #"Mc": "7s"^2"5f"^14"6d"^10"7p"^3#

(c) Valence electron configuration #"s"^2"p"^6#

The noble gases:

  • #"Ne": "2s"^2"2p"^6#
  • #"Ar": "3s"^2"3p"^6#
  • #"Kr": "4s"^2"3d"^10"4p"^6#
  • #"Xe": "5s"^2"4d"^10"5p"^6#
  • #"Rn": "6s"^2"4f"^14"5d"^10"6p"^6#
  • #"Og": "7s"^2"5f"^14"6d"^10"7p"^6#