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VirginiaChemistryQuick questions

Scientific Investigation and Atomic Structure

Quick questions on Isotopes and average atomic mass - Virginia SOL Chemistry

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Magnesium-24 (mass 23.9923.99 u) makes up 79.0%79.0\% of natural magnesium, magnesium-25 (mass 24.9924.99 u) makes up 10.0%10.0\%, and magnesium-26 (mass 25.9825.98 u) makes up 11.0%11.0\%. Set up the average-atomic-mass calculation. [1 point]
What is q2?
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Explain why two isotopes of oxygen react the same way chemically. [1 point]

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