Radioactivity, Half-Life & Inverse Square Law - GCSE & A-level Physics (full version)

http://scienceshorts.net Please don't forget to leave a like if you found this helpful! ------------------------------ 00:00 Decay constant 01:49 Half life 08:10 Decay equation derivations 14:24 Intensity & inverse square law - ---------------------------------------------------------------------- I don't charge anyone to watch my videos, so please donate if you can to keep me going! https://bit.ly/scienceshortsdonate