Promethium is a chemical element with the symbol Pm and atomic number 61. It is notable for being the only exclusively radioactive element besides technetium that is followed by chemical elements with stable isotopes.
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Nureongi (누렁이) and Hwangu (황구; 黃狗) are Korean terms meaning "Yellow Dog" used to refer to tannish mongrel or landrace of dog in... -
Engrams are a hypothetical means by which memory traces are stored as biophysical or biochemical changes in the brain (and other neural...
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