1- Questions préalables Le noyau de

1- Questions préalables Le noyau de l'atome de carbone a pour représentation symbolique 1.1. ner la composition complète de ratome de carbone 11. Justifier On parle dans le texte d'azote 13(symbole N). 1.2. Donner la représentation symbolique du noyau de l'atome d'azote 13 1.3. Lazote 13 et l'azote 14 sont deux isotopes. Pour quelle raison ces isotopes appartiennent-ils au même élément chimique Quelle est alors la différence entre ces deux isotopes L'oxygène 15 est aussi un traceur radioactif. 1.4. Quelle approximation peut-on faire pour calculer masse d'un atome Calculer la alors la masse d'un atome d'oxygène 15 1.5 Donner structure électronique de cet atome. 1.6. En déduire la règle utilisée et la formule de l'ion. l'ion stable formé par cet atome d'oxygène. Indiquer 1.7. Donner la composition de l'ion(nombre de particules de chaque sorte). Justifier. 1.8. Evaluer la masse de cet ion.

Kết quả (Anh) 1:

1 - Preliminary issues the nucleus of an atom of carbon is symbolic representation <... > 1.1. NER the full composition of ratome of carbon 11. Justify refers in the text of nitrogen 13 (symbol N). 1.2 give symbolic representation of the nucleus of an atom of nitrogen 13 1.3. Concentration 13 and 14 nitrogen are two isotopes. For what reason these isotopes belong to the same chemical element, what then is the difference between these two isotopes oxygen 15 is also a radioactive tracer. 1.4. what approximation can be done to calculate mass of an atom calculate the then the mass of an oxygen atom 15 1.5 give electronic structure of the atom. 1.6. deduce used rule and the formula of the ion. the stable ion formed by this oxygen atom. Indicate 1.7. Give the composition of the ion (number of particles of each kind). Justify. 1.8 to evaluate the mass of this ion.

Kết quả (Anh) 2:

1- Preliminary questions The carbon atom has kernel symbolic representation <...> 1.1. ner the full composition of carbon ratome 11. Justify spoken in the text of nitrogen 13 (symbol N). 1.2. Give the symbolic representation of the nitrogen nucleus 13 1.3. Lazote 13 and 14 are two nitrogen isotopes. Why these isotopes they belong to the same chemical element What then is the difference between these two isotope Oxygen 15 is a radioactive tracer. 1.4. What can we do approximation for calculating mass of an atom then Calculate the mass of oxygen 15 1.5 Provide electronic structure of the atom. 1.6. Deduce the rule used and the formula of the ion. stable ion formed by this oxygen. Indicate 1.7. Give the composition of the ion (number of particles of each kind). Justify. 1.8. Evaluate the mass of the ion.

Kết quả (Anh) 3:

1 - preliminary questions at the core of the carbon atom has the symbol <... > 1.1. for the full composition of carbon ratome. support is in the text of nitrogen (n). 1.2. the symbolic representation of the nucleus of the atom of nitrogen 13 (1.3). lazote 13 and 14 are nitrogen isotopes.what is the reason for these isotopes are they in the same chemical element, then what is the difference between the two isotopes of oxygen 15 as a radioactive tracer. 1.4. what can we do to calculate approximation to calculate the mass of an atom, then the mass of an oxygen atom to give a 15 in electronic structure of atoms. 1.6.deduce rule used and the form of the ion. the stable ion formed by the oxygen atom. point 1.7. the composition of the ion, the number of particles of each type). justification. 1.8. evaluation of the mass of the ion.