Lithium Definition and 103 Threads

I seem to be stuck on this problem. I thought calculating the velocity of the center of mass of the system would get me somewhere, but I remain confused about where to go next. Here is the problem: The light isotope, 5^Li is unstable and breaks up spontaneously into a proton (hydrogen nucleus)...

http://arxiv.org/PS_cache/hep-ph/pdf/0306/0306024.pdf Cold dark matter may be made of superweakly-interacting massive particles, superWIMPs, that naturally inherit the desired relic density from late decays of metastable WIMPs. Well-motivated examples are weak-scale gravitinos in...

I was in chemistry class today and I wasn't really paying much attention because its all quite simple stuff we're doing (systems in equilibrium) and my professor mentioned a Lithium compound that got me thinking. Why do I never see anything made out of a lithium compound? Its directly...