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2
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0answers
46 views

Why does the metastable form of Technetium-95 have a longer half-life than its most stable state? [migrated]

I was looking at the isotopes of technetium page on Wikipedia recently, and it seems that the metastable $\ce{^{95m}Tc}$ has a substantially longer half-life (61d) than its most stable state of ...
1
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3answers
97 views

Why can't we use fusion to make ourselves rich?

As we know on fusing two hydrogen atoms we can convert it to helium and by breaking them we get two $\ce{H}$ atoms. So why can't we convert mercury to gold by removing 1 proton per atom?
7
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4answers
154 views

Is there a simple field test for heavy water?

Thought experiment Given two glasses of water, how would one detect which glass contains heavy water, and which contains potable water without using complicated laboratory equipment? Something like ...
6
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1answer
114 views

How is the electron “trapped in the crystal” in irradiated NaCl?

Pennsylvania State University provides irradiated NaCl (180,000 rads of gamma radiation) to teachers for a very entertaining demonstration. The salt is orange after irradiation. When it is placed on a ...