4 ms·

I don't think nuclei emit any light except when they're either fusing or breaking apart. The light is probably coming from a cloud of excited electrons, a certa

by kijin 7y ago

I don't think nuclei emit any light except when they're either fusing or breaking apart. The light is probably coming from a cloud of excited electrons, a certain number of which have an extremely high probability of existing near each Strontium nucleus.

the8472 7y ago
> I don't think nuclei emit any light except when they're either fusing or breaking apart. There's always exceptions, thorium has a low-energy isomer that decays via gamma rays that are in the UV range. https://en.wikipedia.org/wiki/Isotopes_of_thorium#Thorium-229m https://en.wikipedia.org/wiki/Isotopes_of_thorium#Thorium-22...