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Mamamia1
@Mamamia1
May 2019
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Bonjour,
J'ai besoin de votre aide je dois faire les exercices 2,3,4 et 6 mais je n'y arrive pas et je vous prie de bien vouloir m'aider.
merci d'avance
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Juulien
Verified answer
Bonsoir,
Exercice 2 :
1) A est le nombre de nucléons, donc A = 32
2) N est le nombre de neutrons et N = A - Z donc Z = A - N = 32 - 16 = 16
Exercice 3 :
1) (2.08*10^-18)/(1.60*10^-19) = 13 protons
2) N = A - Z, A = N + Z = 13 + 14 = 27 nucléons
Exercice 4 :
1) On a 28 électrons.
2) N = A - Z = 59 - 28 = 31 neutrons
Exercice 6 :
(3.29*10.^-25)/(1.67*10^-27) = 197 nucléons
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Verified answer
Bonsoir,Exercice 2 :
1) A est le nombre de nucléons, donc A = 32
2) N est le nombre de neutrons et N = A - Z donc Z = A - N = 32 - 16 = 16
Exercice 3 :
1) (2.08*10^-18)/(1.60*10^-19) = 13 protons
2) N = A - Z, A = N + Z = 13 + 14 = 27 nucléons
Exercice 4 :
1) On a 28 électrons.
2) N = A - Z = 59 - 28 = 31 neutrons
Exercice 6 :
(3.29*10.^-25)/(1.67*10^-27) = 197 nucléons