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MASSE ATOMIQUE [3 records]
Record 1 - internal organization data 2011-12-20
Record 1, English
Record 1, Subject field(s)
- Chemistry
- Atomic Physics
Record 1, Main entry term, English
- mass number
1, record 1, English, mass%20number
correct
Record 1, Abbreviations, English
- A 2, record 1, English, A
correct
Record 1, Synonyms, English
- nuclear number 3, record 1, English, nuclear%20number
correct
- nucleon number 4, record 1, English, nucleon%20number
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The mass number of an atom is the total number of its nuclear constituents, or nucleons, as the protons and neutrons are collectively called. 5, record 1, English, - mass%20number
Record number: 1, Textual support number: 1 OBS
Because of the approximate equality of the proton and neutron masses, and the relative insignificance of that of the electron, the mass number gives a useful rough figure for the atomic mass ... 5, record 1, English, - mass%20number
Record 1, French
Record 1, Domaine(s)
- Chimie
- Physique atomique
Record 1, Main entry term, French
- nombre de masse
1, record 1, French, nombre%20de%20masse
correct, masculine noun
Record 1, Abbreviations, French
- A 1, record 1, French, A
correct
Record 1, Synonyms, French
- nombre de nucléons 2, record 1, French, nombre%20de%20nucl%C3%A9ons
masculine noun
- masse atomique 3, record 1, French, masse%20atomique
avoid, see observation, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
En chimie nucléaire, le concept traditionnel d'éléments chimiques cède la place à celui de nuclide ou d'espèce isotopique. [...] Protons et neutrons s'appellent également nucléons; le nombre total de nucléons d'un noyau donne le nombre de masse de ce noyau. 4, record 1, French, - nombre%20de%20masse
Record number: 1, Textual support number: 1 OBS
Le nombre de masse exprime à peu près la masse du noyau en unité de masse nucléonique mais il ne faut pas confondre les deux termes «nombre de masse» et «masse atomique». 5, record 1, French, - nombre%20de%20masse
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
- Física atómica
Record 1, Main entry term, Spanish
- número de masa
1, record 1, Spanish, n%C3%BAmero%20de%20masa
correct, masculine noun
Record 1, Abbreviations, Spanish
- A 2, record 1, Spanish, A
correct
Record 1, Synonyms, Spanish
- número atómico 3, record 1, Spanish, n%C3%BAmero%20at%C3%B3mico
correct, masculine noun
- número nucleónico 4, record 1, Spanish, n%C3%BAmero%20nucle%C3%B3nico
correct, masculine noun
- número másico 5, record 1, Spanish, n%C3%BAmero%20m%C3%A1sico
correct, masculine noun
- número de nucleones 6, record 1, Spanish, n%C3%BAmero%20de%20nucleones
masculine noun
Record 1, Textual support, Spanish
Record 2 - external organization data 2011-02-18
Record 2, English
Record 2, Subject field(s)
- Chemistry
- Atomic Physics
- Compartment - Canadian Nuclear Safety Commission
Record 2, Main entry term, English
- mass number
1, record 2, English, mass%20number
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- nuclear number 2, record 2, English, nuclear%20number
correct
- mass 3, record 2, English, mass
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
The mass number of an atom is the total number of its nuclear constituents, or nucleons, as the protons and neutrons are collectively called. 2, record 2, English, - mass%20number
Record number: 2, Textual support number: 2 CONT
Different isotopes of the same element are identified by their mass (in atomic units), which equals the total number of protons and neutrons they contain: e.g., cobalt-59, cobalt-60; carbon-12, carbon-14; uranium-235, uranium-238. 3, record 2, English, - mass%20number
Record 2, French
Record 2, Domaine(s)
- Chimie
- Physique atomique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 2, Main entry term, French
- nombre de masse
1, record 2, French, nombre%20de%20masse
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- masse atomique 2, record 2, French, masse%20atomique
avoid, see observation, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Nombre entier A caractérisant un nucléide [...] égal au nombre de nucléons que contient ce nucléide. 3, record 2, French, - nombre%20de%20masse
Record number: 2, Textual support number: 1 CONT
Chaque isotope différent d'un même élément est désigné par sa masse atomique [sic] qui correspond au nombre total de protons et de neutrons dans le noyau. On parle ainsi de cobalt 59, de cobalt 60, de carbone 12, de carbone 14, d'uranium 235 ou d'uranium 238. 2, record 2, French, - nombre%20de%20masse
Record number: 2, Textual support number: 1 OBS
C'est l'entier le plus voisin du nombre exprimant la masse atomique. Exemple : la masse atomique du phosphore est A=30,9733, son nombre de masse A+31. 3, record 2, French, - nombre%20de%20masse
Record number: 2, Textual support number: 2 OBS
Le nombre de masse exprime à peu près la masse du noyau en unité de masse nucléonique mais il ne faut pas confondre les deux termes «nombre de masse» et «masse atomique». 4, record 2, French, - nombre%20de%20masse
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - external organization data 2003-07-02
Record 3, English
Record 3, Subject field(s)
- Chemistry
- Atomic Physics
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- atomic weight
1, record 3, English, atomic%20weight
correct
Record 3, Abbreviations, English
- at. wt. 2, record 3, English, at%2E%20wt%2E
correct
Record 3, Synonyms, English
- relative atomic mass 3, record 3, English, relative%20atomic%20mass
correct
- atomic mass 4, record 3, English, atomic%20mass
correct
- relative nuclidic mass 5, record 3, English, relative%20nuclidic%20mass
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The relative mass of an atom based on a scale in which a specific carbon atom (carbon-12) is assigned a mass value of 12. 2, record 3, English, - atomic%20weight
Record number: 3, Textual support number: 1 CONT
Atomic weight. The nucleus of an atom is made up of neutrons and protons. The total mass of the neutrons and protons along with the electrons gives the mass of the atom. ... Because this value is so small, a new unit of weight, the atomic weight unit (awu), is often used to express the weights of atoms. It is defined as 1/12 the weight of carbon atom. Carbon therefore weighs 12 awu and is the chemists' standard of reference for atomic weights. 6, record 3, English, - atomic%20weight
Record number: 3, Textual support number: 2 CONT
Sometimes hydrogen is assigned an atomic weight of 1 and oxygen an atomic weight of 16, but carbon with a weight of 12 usually is taken as a basis. Every element is assigned an atomic weight. 7, record 3, English, - atomic%20weight
Record 3, French
Record 3, Domaine(s)
- Chimie
- Physique atomique
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- masse atomique
1, record 3, French, masse%20atomique
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- masse nucléidique 2, record 3, French, masse%20nucl%C3%A9idique
correct, feminine noun
- poids atomique 3, record 3, French, poids%20atomique
correct, masculine noun, obsolete
- coefficient atomique 4, record 3, French, coefficient%20atomique
masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Rapport de la masse de l'atome d'un élément au douzième de la masse du carbone 12. 5, record 3, French, - masse%20atomique
Record number: 3, Textual support number: 1 CONT
[La] masse atomique d'un élément [...] a été longtemps définie comme le rapport de la masse de l'atome de cet élément au seizième de la masse de l'atome d'oxygène; ainsi la masse atomique de l'oxygène était 16 [...]. [À l'occasion du] Congrès de l'Union internationale de chimie pure et appliquée (Montréal, 1961) [...] l'atome de carbone de nombre de masse 12 [a] été pris comme nouvelle base des masses atomiques [...] 5, record 3, French, - masse%20atomique
Record number: 3, Textual support number: 1 OBS
[La] Commission des poids atomiques [...] a recommandé d'utiliser la désignation poids atomique pour les éléments qui sont, pour la plupart d'entre eux à l'état naturel, des mélanges de nuclides et de réserver celle de masse atomique pour les nuclides isolés. 4, record 3, French, - masse%20atomique
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Química
- Física atómica
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 3, Main entry term, Spanish
- masa atómica relativa
1, record 3, Spanish, masa%20at%C3%B3mica%20relativa
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- masa atómica 2, record 3, Spanish, masa%20at%C3%B3mica
feminine noun
- peso atómico 3, record 3, Spanish, peso%20at%C3%B3mico
avoid, see observation, masculine noun
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Razón entre la masa media por átomo de la composición nucleídica natural de un elemento y la dozava parte de la masa atómica del nucleido de12C. 1, record 3, Spanish, - masa%20at%C3%B3mica%20relativa
Record number: 3, Textual support number: 1 OBS
Según la fuente SP-95, el término "peso atómico" es impropio. 4, record 3, Spanish, - masa%20at%C3%B3mica%20relativa
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