Calculate the average atomic mass to four sig figs for the hypothetical element matildan (Ma) with the following isotopic masses and abundances (pay special attention to how to report your answer based on sig fig rules):

Calculate the average atomic mass to four sig figs for the hypothetical element matildan (Ma) with the following isotopic masses and abundances (pay special attention to how to report your answer based on sig fig rules): The average atomic mass for Ma is - amu