Tuesday
September 30, 2014

Homework Help: APCHemistry

Posted by Kiki on Monday, April 26, 2010 at 8:07pm.

Hi
these are the posts from earlier---i just had a quetsion about your response:


""Apchemistry - DrBob222, Monday, April 26, 2010 at 7:10pm
Your thinking is ok. All ionic solids, although composed of ions, are locked into place by the crystal lattice structure of the compound. Thus the ions are not free to move about and they can not conduct electricity. """

*****my question is: even though the ions are not free to move about, don't they still have vibrational energy, if not translational and rotational? Doesn't the answer have to be related to electrons' movement? (i was thinking, in metallic solids, there is a sea of electrons, but in ionic solids, there is no such "sea" (?because the electrons are involved in the lattice structure of the ionic solid) so the electrons cannot freely flow so current cannot flow??

does this sound correct?
Thank you!!!!!

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