ASTANTINE - Its the rarest thing on Earth
Name: From the Greek astatos, unstable.
Atomic mass: (210)
History: First produced in 1940 by Dale R. Corson, K. R. MacKenzie, and Emilio Segrè at the University of California, Berkeley, by bombarding a bismuth isotope with particles.
Occurrence: The rarest of the 92 naturally occurring elements; less than 30 g exists on Earth at any one time as a natural by-product of uranium and thorium decay.
Appearance: Solid nonmetal of unknown color at room temperature.
Behavior: Highly radioactive; decays very quickly.
Uses: None.
2007-10-25 22:11:53
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answer #1
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answered by nice_libra_guy 6
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a good marriage, something that would last forever, that the couple would stay with each other come hell or high waters, its rare now a days....i guess the generation changes, my parents had their ups and downs but being together for 45 years is not that easy and i want to congratulate the two of them for sticking it out with each other..
2007-10-26 02:55:42
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answer #2
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answered by Maria 3
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Pureness
2007-10-26 19:13:54
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answer #3
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answered by † Iríšh † 7
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Wild Haggis, rarely seen in Scotland these days!!
2007-10-25 22:07:35
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answer #4
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answered by McHaggis Scoticus 7
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My sons call is Holten. it truly is a relations call with the EN extra on. i don't believe of there is yet another one available, and if there is there is not any longer many. My niece's call is Kallista have not heard to lots of them both.. Congrats on the recent infant. Oh and Bentley is growing to be fairly well-known. i understand 2 ladies that in simple terms named there is Bentley..
2016-10-23 00:32:59
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answer #5
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answered by ecker 4
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Peace and quiet in my home right now
(3 generations under one roof - the oldest two are hard of hearing and the youngest two are an preschool boy and his lively toddler sister)
2007-10-27 04:23:13
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answer #6
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answered by Invisible 3
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Iowa State college football National Championship
2007-10-26 00:36:16
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answer #7
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answered by Rick G2 5
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Getting a seat on the bus & sky train I am senior with a cane you kids just sit and look up at me & others
2007-10-26 03:16:54
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answer #8
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answered by Grand pa 7
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Hi, to find a big pearl in an oyster-lol. Love Jo xx
2007-10-26 03:12:50
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answer #9
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answered by Anonymous
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Artichoke
2007-10-25 22:07:39
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answer #10
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answered by JJ 7
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