ATOMUL
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OBS :NR PROTONILOR
DIN NUCLEU ESTE EGAL CU AL ELECTRONILOR DIN INVELIS
A. Nucleu.
1. nucleoni-particulele din
nucleu
Particula
|
Sarcina
|
Masa
|
Proton
|
e =1,6.10 -19C
|
mp 1,67.10 -27kg
|
Neutron
|
|
mn 1,67.10 -27kg
|
Z si A.
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Asa se teprezinta un element
chimic
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DECI : sunt 7
straturi notate cu 1,2,3 . . ..sau K,L,M . . . ..Q pe fiecare incap maxim 2*n2
electroni.
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