The mass number of He is 64 and that for sulphur is 32. The radius of sulphur nuclei is larger than that of helium by The mass number of He is 64 and that for sulphur is 32. The radius of sulphur nuclei is larger than that of helium by August 16, 2020 Category: Chapter 31 - Nuclei , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related