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Technetium Tc and relative atomic mass?
why does the element Technetium have brackets around the relative atomic mass if you know the source could you add that in to please
thnz
2 Answers
- Al de ManLv 51 decade agoFavorite Answer
Probably something to do with the fact that Technetium is not found naturally in anything but trace quantities and most of its 25 isotopes have a half life measuring in days or less, so the relative atomic mass will vary depending on the source and the day of the week. ;-)
