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cati protoni Electronic si neutroni are mangan​

Răspuns :

Z=p=e

Mangan are 25 de protoni.

z=p-25 protoni are Mn

n=A-z

A=masa atomica

z=nr.atomic

neutoni sunt : 55-25=30 neutroni are Mangan,

Deci 25 protoni,(-25 )electroni, 35 neutroni

Spor!