A new 'element' Chemistrium is known to have three naturally-occurring stable 'isotopes'. A sample off 77 'atoms' of Chemistrium was tested. Calculate the percent abundances and the atomic mass of Chemistrium. (Data below)

Question

anonymous · Answer

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zpupster · Answer

the total  no of atoms 77  to figure out a percent, we take the number we found and divide by the total and then mult by 100. i will do the first you do the rest


 = (55/77)/100 = ?? percent abundance of isotope 1
isotope 2 = ?
isotope 3 = ?