science help: Element L has an average atomic mass of 60.2047 amu and is composed of two isotopes.

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Element L has an average atomic mass of 60.2047 amu and is composed of two isotopes.

The first has a mass of 60.7995 amu and makes up 54.810% of a standard sample. What is the mass of the second isotope?

Please help me its homework and i’ve been working on it for hours

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Anonymous #
3 weeks, 1 day ago (3 weeks, 6 days after post)

Subtract the lesser amu from the greater.

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