
Atomul. Tabelul periodic al elementelor.
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Timea-Noemi Zsekan
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Cea mai mică particulă dintr-o substanță simplă, care mai păstrează individualitatea acesteia este
neutronul
molecula
izotopii
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Protonul are sarcină electrică pozitivă.
Adevărat
Fals
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
3. Ce sarcină electrică are electronul?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Neutronul are sarcină electrică:
pozitivă
negativă
zero ( este neutru)
+1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Fluorul ( 199F) are numărul atomic egală cu:
9
10
19
1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. 1 u.a.m. este egală cu:
1,66 * 10-20 kg
1,66 * 10-27 kg
1,66 * 1010 g
1,66 * 1027 kg
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. Numărul lui Avogadro este egală cu:
6,022 * 10-23 mol-1
6,023 * 1022 mol1
6,022 * 1023 mol-1
6,022 * 1021 mol-1
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8. Izotopii sunt specii de atomi cu același număr atomic (Z), dar cu număr de masă (A) diferit.
Adevărat
Fals
9.
FILL IN THE BLANK QUESTION
1 min • 1 pt
9. Nucleul unui atom este alcătuit din:
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