Calculate the relative atomic masses of the following elements

CHEMISTRY · Multi-part · A Level · Chemistry · Atomic structure · Atomic structure

Problem

Calculate the relative atomic masses of the following elements, giving your answer to two decimal places. (1) carbon: % abundance:

^{12}\text{C} = 98.93

^{13}\text{C} = 1.07

(2) argon: % abundance:

^{36}\text{Ar} = 0.3365

^{38}\text{Ar} = 0.0632

^{40}\text{Ar} = 99.6003