Atomic Structure + Isotopes
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Last updated 2:55 PM on 5/21/25
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4 Terms
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Isotopes Definition
Form of a chemical element that has the same number of protons but different number of neutrons
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Ion Definition
When protons do NOT equal electrons
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Steps to finding the average atomic mass
1) Turn all percents into decimals
2) Multiply each element by its atomic mass
3) Add everything
** DON’T FORGET SIGFIGS!
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What is the difference between an ion and an isotope?
An ion is an atom or molecule that has gained or lost electrons, resulting in a net electrical charge. An isotope is a different version of the same element with the same number of protons but a different number of neutrons
Note 
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