1. The problem statement, all variables and given/known data Explain what is meant by Bremsstrahlung. Which cross-section is higher for atoms with Z>1: Bremsstrahlung on the atomic nucleus or on the atomic electrons? Why? 3. The attempt at a solution I explained what Bremsstrahlung was just by copying from the notes. I am not sure about which cross-section is higher. So far I wrote: Bremsstrahlung on the atomic nucleus because the nucleus is bigger than the electrons so they have a larger cross-section. Is this correct? If so, is there some way to expand upon that reason / are there any other reasons? My notes and textbooks almost say nothing about Bremsstrahlung cross-sections. Thanks if you help.