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Calculation of Atomic Weight from Isotopic Composition

Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.
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11/9/2012 I liked the activity, but it was too short! It would be much better with more examples and some practice problems. Kimette Witt

11/5/2007 This was a fun easy way to learn. now its easier to find the number of isotopes

6/14/2006 when clicking on the stars, I thought they would continue to keep clicking up to 5. I loved this lesson! 5 stars!!!!! What seemed difficult and unable to understand was made very basic and understandable!!!!

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