Explanatory notes
… up of a mixture of 75.4 % chlorine 35 and 24.6 % chlorine 37 (which gives it its atomic weight of 35.457). When an … consequently by depleting it to contain 15 % of chlorine 37) is considered as an isotope. It should be noted that … 90, palladium 109, iodine 131 and 132, xenon 133, caesium 137, thulium 170, iridium 192, gold 198, and polonium 210. …
