Mathematics · Atomic Weight Calculation
What is the average atomic weight of a hypothetical element consisting of two isotopes, one with a mass of 64.2 u (abundance 25%) and the other with a mass of 65.3 u (abundance 75%)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 165.0 u✓
- 264.9 u
- 364.4 u
- 465.3 u
Correct answer
65.0 u
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