A newly discovered element, Z, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267.8 u, and 9.7 percent of the sample is an isotope with a mass of 270.9 u. What is the weighted average atomic mass for this element?

Question

davidusa · Answer

this is math section, not calculus

anonymous · Answer

isn't this a chemistry question?

davidusa · Answer

i mean chemistry

anonymous · Answer

It just kinda popped up, I just opened the page. Sorry!

anonymous · Answer

no problem.