1. Totalitatea atomilor cu același număr atomic Z se numește:

Test-QUIZIZZ- Simbol chimic,Atom.

Quiz
•
Chemistry
•
7th Grade
•
Hard

DIANA PRIHOANCA
Used 4+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nucleu
înveliș electronic
element chimic
simbol chimic
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. Notația 3K indică:
Trei atomi de calciu
Trei atomi de potasiu
Trei atomi de clor
Trei atomi de cupru
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. Cinci atomi de fier se scriu:
Fe Fe Fe Fe Fe
5 F
5Fr
5Fe
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.Izotopii sunt specii de atomi cu :
același număr de neutroni, dar cu număr diferit de protoni
același număr de protoni, dar cu număr diferit de neutroni
numărul de protoni egal cu numărul de neutroni
numărul de protoni egal cu numărul de nucleoni
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. Denumirile elementelor: C, Cl, Cu, Cr, Cs, Co sunt:
crom, calciu, cupru, carbon, cobalt, cesiu
clor, calciu, cobalt, cesiu, crom , carbon
cobalt, clor, carbon, cupru, crom, cesiu
carbon, clor, cupru, crom, cesiu, cobalt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. Un element chimic cu simbolul E se notează prescurtat AZE. Literele A și Z reprezintă:
A=număr atomic , Z= număr de masă
A= număr de masă, Z=număr de neutroni
Z=număr atomic , A= număr de masă
A=număr atomic, Z=număr de neutroni
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.Următorul cuvânt (CuNOSCUTe) a fost scris intenționat într-o anumită formă. Elementele ale căror simboluri se regăsesc în acest cuvant sunt:
Carbon, azot, oxigen, sodiu, cupru, telur
Cupru, azot, oxigen, sulf, carbon, uraniu, technețiu
Cupru, azot, oxigen, sulf, carbon, uraniu, telur
Cupru, azot, oxigen, scandiu, uraniu, technețiu
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