
Quiz atomic: evaluarea cunoștințelor despre structura atomică
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Gabriela Cânduleț
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este unitatea de bază a materiei?
molecula
atomul
ionul
electronul
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care dintre următoarele particule are sarcină electrică pozitivă?
protonul
neutronul
electronul
3.
FILL IN THE BLANK QUESTION
1 min • 2 pts
Structura electronică a unui atom de oxigen este de ....... electroni în stratul de valență
4.
OPEN ENDED QUESTION
3 mins • 3 pts
Ce reprezintă regula octetului?
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Answer explanation
Toți atomii tind să își împartă electronii de valență astfel încât să aibă opt electroni în stratul de valență
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este un izotop?
un atom care are un număr diferit de protoni decât cel obișnuit pentru un anumit element
un atom care are un număr diferit de neutroni decât cel obișnuit pentru un anumit element
un atom care are un număr diferit de electroni decât cel obișnuit pentru un anumit element
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Cum se numește particula subatomică care se găsește în jurul nucleului unui atom și are sarcina negativă?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce reprezintă masa atomică?
numărul total de neutroni dintr-un atom
media ponderată a maselor izotopilor unui element
numărul total de protoni dintr-un atom
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