This document was used as a starting point to create an overall review for the lesson,
which includes simple ionic compounds made from elements with predicatable ion charges.
The exercises for drawing molecules are exactly the same on the other document as they
are here! That document is here.
If using that document, do not use this one! :)
(this note will not print)
For the molecules on this page
Write the name or formula, whichever is missing.
Write down the total number of valence electrons.
Draw the Lewis diagram showing the structure of the molecule.
Write down the 3-D shape or shapes. Molecules may have more than
one central atom; name a shape for each one.
The shapes will all fall into these categories: linear, trigonal planar, bent, tetrahedral, or trigonal pyramidal.
Hints: If the central atom is a metal it is likely to have fewer electrons in the correct molecule than an octet. If the central atom is C, N, O, or F then it must have an octet. If the central atom is P, As, S, Se, Te, Cl, Br, or I then sometimes it may have greater than an octet in the final, correct molecule.
Do your work neatly on the back of this sheet and on additional paper, as needed.