Atomic Number: Number of Protons
Atomic Mass- Atomic Number= Number of Neutrons
Mass Spectrometers are used to determine the abundance and mass of the isotopes of elements
http://www.youtube.com/watch?v=SeDaOigLBTU
How to calculate the average:
- Change each percent to a decimal by dividing by 100
-Multiply by the mass
-Add it all together
http://www.youtube.com/watch?v=xL86L3qUf34
-Candace Chan
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