| einsteinium |
a radioactive transuranic element produced by bombarding plutonium with neutrons
출처: wordnet.princeton.edu/perl/webwn
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| einsteinium |
Einsteinium is a synthetic element in the periodic table that has the symbol Es and atomic number 99. A metallic highly radioactive transuranic element (7th in the series) in the actinides, einsteinium is produced by bombarding plutonium with neutrons and was discovered in the debris of the first hydrogen bomb test. It was named after Albert Einstein and has no known uses. ...
출처: en.wikipedia.org/wiki/Einsteinium
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