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March 1, 2015

Posted by **CHEM** on Thursday, October 25, 2012 at 12:11am.

ClO4−

ClF4−

SiCl4

SO42−

Which molecule or ion does not have a tetrahedral molecular geometry?

- Stela -
**DrBob222**, Thursday, October 25, 2012 at 12:29amCan you draw the Lewis dot structure for each? I would look at SO4^2- and ClF4^-. Another way is to count the electrons around one that you know; e.g. we know CCl4 is tetrahedral. That has 4e for C and 28 e for 4Cl atoms for a total of 32e. Check the number of electrons around for the others. One should be different. That's much faster than drawing the Lewis structure for each.

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