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Topic: Chemistry Atams Molecules and Ions -chapter 2 Zumdahl  (Read 3220 times)

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Offline calvin0101

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Chemistry Atams Molecules and Ions -chapter 2 Zumdahl
« on: August 15, 2007, 09:44:09 PM »
I am doing Ap Chemistry Work for summer and i am stuck on this one problem out of 102 of them... please help me!!! this is the question.



Dalton assumed that all atoms of the same element were identical in all of their properties. How have we had to modify  this?
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Offline Bakegaku

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Re: Chemistry Atams Molecules and Ions -chapter 2 Zumdahl
« Reply #1 on: August 15, 2007, 10:14:05 PM »
An element is defined by how many protons it has in its nucleus, and the number of electrons is tied to the number of protons.  What else can you change?
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