TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
ELECTRONIC DECAY [2 records]
Record 1 - internal organization data 2010-06-07
Record 1, English
Record 1, Subject field(s)
- Chemical Elements and Compounds
- Nuclear Physics
Universal entry(ies) Record 1
Record 1, Main entry term, English
- americium
1, record 1, English, americium
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A radioactive metallic element produced by bombardment of plutonium with high-energy neutrons. 2, record 1, English, - americium
Record number: 1, Textual support number: 2 DEF
A synthetic radioactive element of atomic number 95, a member of the actinide series. 3, record 1, English, - americium
Record number: 1, Textual support number: 1 OBS
Atomic weight 241; 14 isotopes of widely varying half-life.... Derivation : Multiple neutron capture in plutonium in nuclear reactor, plutonium isotopes yield Am 241 and Am 243 on beta decay.... Hazard : A radioactive poison. Use : Gamma radiography, radiochemical research, diagnostic aid, electronic devices. 3, record 1, English, - americium
Record 1, French
Record 1, Domaine(s)
- Éléments et composés chimiques
- Physique nucléaire
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- américium
1, record 1, French, am%C3%A9ricium
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Nom donné à l'élément chimique de numéro atomique 95, qui suit le plutonium dans la série des corps transuraniens. 2, record 1, French, - am%C3%A9ricium
Record number: 1, Textual support number: 1 CONT
L'américium, qui n'existe pas dans la nature, a été obtenu en 1945 par G. T. Seaborg et ses collaborateurs par bombardement de l'uranium au moyen de particules alpha. [...] L'américium est l'un des principaux déchets nucléaires. 2, record 1, French, - am%C3%A9ricium
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Elementos y compuestos químicos
- Física nuclear
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- americio
1, record 1, Spanish, americio
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Elemento químico artificial, radiactivo, de símbolo Am, número atómico 95, masa atómica del isótopo menos inestable 243 y configuración electrónica (Rn) 5f76s2, con 13 nucleidos, ninguno estable. Forma cristales metálicos de estructura compacta compleja, cúbica centrada en las caras y compacta mixta. Pertenece a la serie de los actínidos. 2, record 1, Spanish, - americio
Record number: 1, Textual support number: 1 OBS
[El americio] es un transuránico, inexistente en la naturaleza, que se obtiene artificialmente bombardeando el uranio con partículas alfa para transmutarlo en plutonio 241. Éste, que es inestable, emite espontáneamente una partícula beta y se convierte en americio. 3, record 1, Spanish, - americio
Record 2 - external organization data 2006-03-24
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- neutron-proton ratio 1, record 2, English, neutron%2Dproton%20ratio
Record 2, Abbreviations, English
Record 2, Synonyms, English
- n:p ratio 1, record 2, English, n%3Ap%20ratio
- neutron proton ratio 1, record 2, English, neutron%20proton%20ratio
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Although isotopes exhibit nearly identical electronic and chemical behavior, their nuclear behavior varies dramatically. Atomic nuclei consist of protons and neutrons bound together by the strong nuclear force. Because protons are positively charged, they repel each other. Neutrons, which are electrically neutral, allow some separation between the positively charged protons, reducing the electrostatic repulsion and stabilizing the nucleus. For this reason neutrons are necessary for two or more protons to be bound into a nucleus. As the number of protons increases, additional neutrons are needed to form a stable nucleus; for example, although the neutron/proton ratio of3He is 1/2, the neutron/proton ratio of238U is greater than 3/2. If too many neutrons or too few neutrons are present, the nucleus becomes unstable and subject to nuclear decay. 1, record 2, English, - neutron%2Dproton%20ratio
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- rapport neutron-proton
1, record 2, French, rapport%20neutron%2Dproton
masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- rapport N/Z 1, record 2, French, rapport%20N%2FZ
masculine noun
- rapport neutron/proton 1, record 2, French, rapport%20neutron%2Fproton
masculine noun
Record 2, Textual support, French
Record 2, Key term(s)
- rapport neutron proton
Record 2, Spanish
Record 2, Textual support, Spanish
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