Average Atomic Mass, Mass (a.m.u.), & Abundance %

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6 Terms

1
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Average Atomic Mass =

(Fraction 1) x (mass 1) + (fraction 2) x (mass 2) etc.. (depending on how many isotopes in element).

<p>(Fraction 1) x (mass 1) + (fraction 2) x (mass 2) etc.. (depending on how many isotopes in element).</p>
2
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If average atomic mass of an isotope is not given…

Check the periodic table

3
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Abundance Percentage adds up to…

100%

<p>100%</p>
4
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Fraction adds up to…

1.000 (1)

5
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Fraction cannot be…

Less than zero OR more than 1 (because all isotopes add up to 1). EX: 0<fraction<1

6
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Natural Abundance (N.A) cannot be…

Less than 0% or more than 100% (because all isotopes add up to 100%)

<p>Less than 0% or more than 100% (because all isotopes add up to 100%)</p>