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MissRusse
@MissRusse
May 2019
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Bonjour,
Pouvez-vous m'aider pour mon exercice en chimie ? Merci ! (je suis en troisième)
L'atome d'aluminium a un diamètre de 0,3 nm. Son noyau est environ 150 000 fois plus petit.
Calculer le diamètre de son noyau en femtomètre.
On donne :
1 femtomètre =
m.
Voilà,
Cordialement
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aur70
Verified answer
Soit d, le diamètre du noyau
d=(0.3*10⁻⁹)/(1,5*10⁵)=0.2*10⁻¹⁴m=2*10⁻¹⁵m=2 fm
1 votes
Thanks 1
MissRusse
Merci beaucoup !
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Verified answer
Soit d, le diamètre du noyaud=(0.3*10⁻⁹)/(1,5*10⁵)=0.2*10⁻¹⁴m=2*10⁻¹⁵m=2 fm