TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PROTOACTINIUM [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2001-09-27

English

Subject field(s)
  • Geochemistry
  • Chemistry
  • Compartment - Canadian Nuclear Safety Commission
DEF

A shiny, gray, metallic radioactive element that is formed in nature by the loss of an alpha particle and a beta particle from uranium 235. Protactinium 231 disintegrates into actinium 227 and ultimately into lead 207 ... Symbol, Pa; valences, 4 and 5; tetragonal; atomic number, 91; atomic weight, 231.

French

Domaine(s)
  • Géochimie
  • Chimie
  • Tiroir - Commission canadienne de sûreté nucléaire
DEF

Élément radioactif faisant partie du groupe des actinides [...] formé dans la nature par la perte d'une particule alpha et d'une particule bêta de l'uranium 235.

OBS

Numéro atomique 91, nombre de masse 231.

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Química
  • Compartimiento - Comisión Canadiense de Seguridad Nuclear
Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: