A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead. Synonyms: atomic number 91, Pa, protoactinium.
|
|
|
|
| | | |||
|
|
|
|
Words linked to "Protactinium" : protoactinium, metal, pa, metallic element |
Copyright © 2024 Free-Translator.com |
