
Test Chimie VII-a B
Authored by Mihaela Gheorghe
Chemistry
7th Grade
Used 139+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Unde se gaseste neutronul intr-un atom?
In proton
In foton
In electron
In nucleu
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ce arata numarul grupei In care se afla un element?
covalenta
numarul protonilor
numarul de straturi electronice
numarul de electroni de pe ultimul strat
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Intr-un mol de substanta se gasesc un numar de particule (molecule, atomi) egal cu:
10 la puterea 7
Numarul lui Avogadro
Numarul lui Fibonacci
12789
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cum se numeste particula incarcata pozitiv din atom?
Proton
Pozitron
Neutron
Centron
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Care este singura litera care nu apare In tabelul periodic?
I
K
J
M
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
1. O substanță din alimentația zilnică este:
clorura de sodiu
acid clorhidric
carbonat de calciu
sodă caustică
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Un element din perioada 4 va avea...
4e pe ultimul strat
4 straturi electronice în înveliș
4 e în nucleu
4 valențe
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