2 Matching Annotations
- Aug 2021
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chem.libretexts.org chem.libretexts.org
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A theory does not change into a scientific law with the accumulation of new or better evidence.
- Note
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www.ck12.org www.ck12.org
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For helium, there is approximately one isotope of Helium-3 for every one million isotopes of Helium-4, hence the average atomic mass is very close to 4 (4.002602).
- Need more understanding on this
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