Drawing the Lewis Structure for AsO33- (Arsenic Trichloride)

Viewing Notes:

  • For the Lewis structure for AsO33- you'll need to add three additional valence electrons because of the 3- charge on the ion.
  • For the AsO33- Lewis structure there are a total of 26 valence electrons available.
  • The Arsenic atom goes in the center of the Lewis structure since it is the least electronegative atom.
  • Be sure to put brackets and a 3- around the AsO33- Lewis structure to show that it is an ion.

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Frequently Tested Lewis Structures

Basic
CH4,   NH3,   C2H4,   O2,   N2

Intermediate
O3,   BBr3,   I3-,   BrF5,   NO

Advanced
SO3,   H2SO4,   OCN-,   XeO3,   ClO4-