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→Calculating the Average Relative Atomic Mass
92.5% of all [[Lithium]] is the [[isotope]] [[Lithium-7]] while [[Lithium-6]] makes up only 7.5%. Find the [[Mean Average|average]] [[Relative Atomic Mass|atomic mass]] of [[Lithium]].
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| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities in [[SI Unit]]s.'''
Ratio: 3:1
3xChlorine-35 : 1xChlorine-37
| style="height:20px; width:300px; text-align:left;" |'''1. State the known quantities in [[SI Unit]]s.'''
Ratio: 92.5:7.5