English
Detailed Synonyms for atomic number 61 in English
atomic number 61:
atomic number 61 [the ~] nom
-
the atomic number 61
– a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium 1the Pm; the atomic number 61; the promethium– a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium 1