Question #a81ec

↳Redirected from "An electron in a hydrogen atom drops from energy level n=5 to n=3. What is the energy transition using the Rydberg equation?"
1 Answer
Matt
Jul 11, 2016

It is due to the relative abundances of its isotopes

Explanation:

There are two principal Chlorine isotopes. About 75% of Chlorine atoms have a relative atomic mass of 35 and 25% have a relative atomic mass of 37.

Hence in a sample of Chlorine, the average relative atomic mass would be:
#(75% times 35) + (25% times 37)=35.5#

Related questions
See all questions in Atomic Mass
Impact of this question
4431 views around the world
You can reuse this answer
Creative Commons License