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. Synonyms: Pm, promethium.
|
|
|
|
 | | | |||
|
|
|
|
Words linked to "Atomic number 61" : pm, metal, metallic element |
Copyright © 2024 Free Translator.org |
