chemistry lab 12

Chem1AExpt-12LewisStructures-BeyondtheOctet.docx

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Chem 1A – Expt-12 Lewis Structures – Beyond the Octet

Part A: Bonding Patterns with Three and Four Electronic Domains

Three Electron Domains – name the shape	Four Electron Domains – name the shape
0 lone pairs		BF3	0 lone pairs	CH4
1 lone pair		SO2	1 lone pair	NH3
			2 lone pairs	H2O

For each molecule illustrated above, write the name of the molecular shape in the box, then draw the Lewis structure here (be sure to include all lone pairs):

Part B: Bonding Patterns with Five and Six Electronic Domains

Five Electron Domains – name the shape	Six Electron Domains – name the shape
0 lone pairs		PCl5	0 lone pairs	SF6
1 lone pair		SF4	1 lone pair	BrF5-
2 lone pairs		ClF3	2 lone pairs	XeF4
3 lone pairs		XeF2

For each molecule illustrated above, write the name of the molecular shape in the box, then draw the Lewis structure here (be sure to include all lone pairs):

Part C: Assign the correct molecular geometry to the following molecules and ions and draw their Lewis structures

I3-

BF4-

POF3

PF6-

Dr. Alex Madonik Page 1 College of Alameda