C-12 and c-13 are naturally occurring isotopes of the element carbon. c-12 occurs 98.89% of the time and c-13 occurs 1.108% of the time. what calculation should be used to determine the atomic mass of this element?

We will determine the weighted average of the atomic mass of two isotopes.

Explanation:

The atomic mass of an element is the weighted average of atomic masses of the most abundant isotopes occur in nature.

Given:

Percentage abundance of C-12 : 98.89%

Percentage abundance of C-13: 1.108%

The atomic mass of carbon will be"

Atomic mass = g/mol