Chemistry, 17.11.2020 17:30 0gNanaa

5. The four isotopes of lead are shown below, each with its percent by mass abundance and the composition of its nucleus. Using the following data, first calculate the approximate atomic mass of each isotope. (Assume that each proton and neutron has a mass of 1.00 amu. Disregard the mass of the electrons.) Finally, calculate the average atomic mass of lead. 82p 82p 82p 82p
122n 124n 125n 126n
1.37% 26.26% 20.82% 51.55%

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