
Materia componentă a universului
Authored by Maria Tamas
Science
11th Grade
Used 2+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Denumirea de atom provine de la:
Democrit și Leucip
Aristotel
Berzelius
Mendeleev
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A definit termenul de „element chimic”
Berzelius
Dalton
Lomonosov
Mendeleev
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Michael Faraday a descoperit
electronul
pozitronul
atomul
protonul
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cea mai mică particulă dintr-o substanță care prin procedee chimice obișnuite nu poate fi fragmentată în alte particule mai simple este:
atomul
electronul
protonul
ionul
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Protonul:
are sarcină pozitivă
este alcătuit din neutroni
are sarcină negativă
nu are sarcină
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atomul devine ion dacă
are mai mulți protoni decât neutroni
are număr de electroni și protoni diferit
are mai mul electroni decât pozitroni
are număr diferit de protoni și neutroni
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Electronii în jurul atomului sunt pe orbite energetice stabile conform modelului:
atomic
planetar al atomului
cuantic al atomului
orbital al atomului
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