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CENTRAL ATOM [1 record]
Record 1 - internal organization data 2017-12-29
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- central atom
1, record 1, English, central%20atom
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- nuclear atom 1, record 1, English, nuclear%20atom
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In its oldest sense the term generally refers to molecules or ions in which there is an atom (A) to which are attached other atoms (B) or groups (C) to a number in excess of that corresponding to the classical or stoichiometric valence of the atom (A). The atom (A) is known as the "nuclear" or "central" atom. Atoms (B) and groups (C) are called ligands. 1, record 1, English, - central%20atom
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- atome central
1, record 1, French, atome%20central
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- atome nucléaire 1, record 1, French, atome%20nucl%C3%A9aire
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Dans son sens primitif, l'expression se rapportait généralement aux molécules ou ions dans lesquels un atome (A) se trouvait uni à d'autres atomes (B) ou à des groupes (C) en nombre supérieur à celui qui correspond à la valence classique ou stœchiométrique de cet atome. L'atome (A) est qualifié de «nucléaire» ou «central». Les atomes (B) et les groupes (C) sont appelés coordinats. 1, record 1, French, - atome%20central
Record number: 1, Textual support number: 1 OBS
Maintenant, l'ensemble constitué par un ou plusieurs atomes centraux avec leurs coordinats est considéré comme une entité de coordination qui peut être soit un cation, un anion ou une molécule neutre. 1, record 1, French, - atome%20central
Record number: 1, Textual support number: 2 OBS
En ce sens, le terme anglais «ligand» n'est pas admis par l'Académie des Sciences. 1, record 1, French, - atome%20central
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Química
Record 1, Main entry term, Spanish
- átomo central
1, record 1, Spanish, %C3%A1tomo%20central
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
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