Part A What is the relative atomic mass of a hypothetical element that consists of the following isotopes in the indicated natural abundances? Isotopic mass Relative abundance Isotope (mu) 1 11.6 77.9 80.9 11.0 2 3 81.9 77.4 Express your answer to three significant figures and include the appropriate units. View Avaliable Hint() 123 ? Value Units Submit Part 8 What is the relative atomic mass of the element that consists of the following isotopes in the indicated natural abundances? Relative Isotope Isotopic mass abundance (am) 1 57 93 2 67.76 26.16 1.25 3 59.93 60.93 61.93 63.93 4 3.66 5 1.16 Express your answer to three significant figures and include the appropriate units. View Available Hint() is ? Value Units Submit