This video explains how we can draw the mass spectra of clorine and bromine with their relative abundances..
This mainly comes in Unit 1 paper in IAS Edexcel chemistry syllabus.
Its better to get an idea about the mass spectrometer and how it works. So that follow this link for that first.
Mass Spectrometer [ Ссылка ]
![](https://i.ytimg.com/vi/I0eQzgjzwck/maxresdefault.jpg)