What is the rarest element in the universe?

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Offline latebind

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What is the rarest element in the universe?
« on: 12/04/2010 00:17:53 »
What is the rarest element in the universe?

How much of it is there? (Guess if you don;t know pls!)
Late

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Offline Ron Hughes

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What is the rarest element in the universe?
« Reply #1 on: 12/04/2010 01:12:59 »
Element 115.
From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other. Sherlock Holmes.

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Offline Shadec

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What is the rarest element in the universe?
« Reply #2 on: 14/04/2010 03:57:47 »
I would say the last few on the PT, as Ron pointed out. These don't really appear in nature, they're made by slamming atoms into each other,  so this wouldn't be too common without scientists manipulating things with accelerators and whatnot!
so the ones on the bottom row (not the Actinides and Lactinides) the actual lowest row. These atoms are extremely unstable, especially the larger (the larger the atomic number, the larger the atom), which last only for miniscule amounts of time