File talk:Decay chain(4n+1,Neptunium series).PNG

1. The graphic (which is really lovely) has U-233 written (inside the little stop sign) as U-223.

2. Bismuth 209 is now known not to be stable; its half-life is 1.9 x 10^19 years, and it decays into Thallium-205 by alpha decay.

3. Decay chain says the half-life of Astatine-217 is 32 ms, not 32.3 sec like in this diagram.