metale
Authored by Merineanu Tatiana
Chemistry
9th Grade
Used 33+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
În natură cel mai răspândit metal este
Al
Fe
Na
Ca
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
În subgrupele principale numărul de electroni pe stratul exterior la metale este
același
crește de sus în jos
scade de sus în jos
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nucleul atomului de Magneziu conține
12 protoni și 12 neutroni
12 protoni și 13 neutroni
13 protoni și 13 neutroni
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Legătura dintre atomii metalelor se numește
metalică
ionică
covalentă polară
covalentă nepolară
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Metalele conduc bine curentul electric și căldura
Adevărat
Fals
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Metalele ușor cedează electronii de pe stratul exterior
Adevărat
Fals
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Potasiul este cel mai activ metal și substitue hidrogenul din apă
Adevărat
Fals
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