Explanatory notes
… 32, sulphur 35, potassium 42, calcium 45, chromium 51, iron 59, cobalt 60, krypton 85, strontium 90, yttrium 90, … phosphorus 32, sulphur 35, potassium 42, calcium 45, iron 59, strontium 90, iodine 131, etc.). (e) In physical or …