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Rarest naturally occurring element in the earth's crust
Answer for the clue "Rarest naturally occurring element in the earth's crust ", 8 letters:
astatine
Alternative clues for the word astatine
Word definitions for astatine in dictionaries
Wiktionary
Word definitions in Wiktionary
n. A highly radioactive chemical element (''symbol'' At), one of the halogens, with atomic number 85.
Wikipedia
Word definitions in Wikipedia
Astatine is a radioactive chemical element with the chemical symbol At and atomic number 85, and is the rarest naturally occurring element on the Earth's crust . It occurs on Earth as the decay product of various heavier elements. All its isotopes are short-lived; ...
WordNet
Word definitions in WordNet
n. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium [syn: At , atomic number 85 ]
Usage examples of astatine.
We link the astatine isotope to carrier molecules that seek out the disseminated microscopic cancers in your brain.
When Ohm had only a few human robots he got enough astatine from his own banknotes.
Their entire project depends on that astatine to keep the robots going and to create more stalk ears.
The Treasury Department will never believe in this story of biocontrol, alien plants, astatine, and human robots.
With the astatine supply at stake any Queensbury Rules followed before would now be ignored.
The nobles also renounced him and elected his cousin Stron Astatine as their new king.
Lady Astatine was the only relative who retained critical objectivity.
The isotope of astatine had a half-life of eight hours-yet, impossibly, it was stable.
After that it becomes astatine for three ten-thousandths of a second, and bismuth for an hour, and polonium 212 for three ten-millionths of a second.
No one had ever handled anything as high as astatine before, and there were eighty-five of the little buggers to worry about.