2. Atoms & Elements

Calculate the atomic mass of element X given its isotopes X-45 with a mass of 44.8776 amu and 32.88% abundance, and X-47 with a mass of 46.9443 amu and 67.12% abundance.

Calculate the average mass, in grams, of one platinum atom given that the atomic mass of platinum is approximately 195.08 amu.

How is the average atomic mass of an element calculated?

Element A has two isotopes. The first isotope is present 24.01% of the time and has a mass of 131.96 amu. The second isotope has a mass of 113.66 amu. Calculate the atomic mass of element A.

Given the mass spectrum data of an element with isotopes having masses of 10 amu (20% abundance), 11 amu (50% abundance), and 12 amu (30% abundance), calculate the atomic weight and identify the element.

How is the average atomic mass of an element calculated?

How is the atomic mass of bromine calculated given its isotopes, Br-79 with 51% abundance and Br-81 with 49% abundance?