Question

aan element has average atomic mass 9.8 u and exists in two isotopes 9/4and 11/4 find the percentage​

Answer 1

Answer:

Explanation:

The chlorine isotope with 18 neutrons has an abundance of 0.7577 and a mass number of 35 amu. To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.