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coldgirl [10]
3 years ago
15

An element has three stable isotopes. One has a mass number of 63 and an abundance of 50%. The second has a mass number of 65 an

d an abundance of 30%. The third has a mass number of 67 and an abundance of 20%. Calculate the relative atomic mass of this element. Give your answer to one decimal place.
Physics
1 answer:
Svetlanka [38]3 years ago
3 0

63x1/2 + 65x0.3 + 67x1/5

=

64.4 average atomic mass

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