#potassium 38

[lutetium-catto]

This shy isotope could be your best friend, if you could get him out of his shell:

(learn more about him on my blog)

From I-1-ium

I-I'm still learning to get out of my own shell... or was that a bad pun, calling his peel a shell or something... I dunno, Euro's good at jokes, not me.