SPRING 2022 ral Chemistry I - CHM115 - M9 - Spring 2022 7 My courses / General Chemistry I - CHMI15 - M9 - Spring 2022 / 6 March - 12 March / Assignment 1 - Due date 16.03.2022 (15%) on 6 A scientist discovered a new element X that has two naturally occurring isotopes. The first isotope has a mass (ml) = 39.75 amu and abundance (Al) = 17%. The second isotope has mass (m2) = 4175 amu, abundance (A2) = 83 %. ered ed out of a) Choose the correct operation for calculating the atomic mass: b) What is the atomic mass of Element X? ag ion The calculated atomic mass of X is unit is (Choose the nearest value to your answer from the drop list) parte