the sum of two twin numbers is 60 what are the number
oh 100-37.3 okokok thxx
where did u get 627 from?
The average atomic mass of iridium is 192.22u, if iridium-191 has an atomic mass of 190.961u and an isotopic abundance of 37.3% and iridium-193 is the only other natural occuring isotope, what is the atomic mass of iridium-193? I tried but I dont think I have the right answer....