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Atom. Simbol chimic

Quiz by Pamfilia Dumitrascu

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10 questions
Show answers
  • Q1
    Electronul
    este incarcat cu sarcina pozitiva
    este neutru din punct de vedere electric
    este incarcat cu sarcina negativa
    20s
  • Q2
    Numarul atomic indica
    numarul protonilor
    numarul neutronilor
    numarul nucleonilor
    20s
  • Q3
    Numarul de masa indica
    numarul neutronilor
    numarul protonilor
    numarul nucleonilor
    numarul electronilor
    20s
  • Q4
    Carbonul are simbolul chimic
    Ca
    Cr
    C
    Cb
    20s
  • Q5
    Izotopii au
    numar diferit de electroni
    acelasi numar de neutroni
    numar diferit de protoni
    numar diferit de neutroni
    20s
  • Q6
    Au masa neglijabila
    protonii
    electronii
    quarcii
    neutronii
    20s
  • Q7
    Atomul de Cl (Z=17, A=35) contine
    17 electroni
    35 electroni
    35 protoni
    17 neutroni
    20s
  • Q8
    Atomul de fluor ( A=19, Z=9) are urmatoarea configuratie electronica:
    2,8,8,1
    2,9
    2,8,9
    2,7
    20s
  • Q9
    5 mol de atomi de Mg (A=24) cantaresc
    1200 g
    120 g
    120 kg
    100 g
    20s
  • Q10
    In 4 g hidrogen se gaseste un numar de atomi egal cu
    12,044 x 10exp23
    24,088 x 10exp23
    6,022 x 10exp23
    24,088 x 10exp22
    20s

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