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5 votes
Set up (show work) and calculate the average atomic mass of an unknown element X with two

isotopes, if X-12 makes up 40% of the element and X-14 makes up 60% of the element.
(percent abundances)

asked
User Surlac
by
9.3k points

1 Answer

3 votes
12*40/100+14*60/100=12.20
answered
User Renan Kosicki
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8.0k points