
Tabelul Periodic
Authored by Raluca Anghelina
Chemistry
7th - 9th Grade
Used 51+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Coloanele verticale din Tabelul periodic se numesc:
grupe
turnuri
perioade
numere atomice
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementele sunt aranjate in Tabelul periodic după:
masa atomică
numărul atomic
valența electroniclor
numărul de izotopi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sodiul (Na) se găsește în perioada:
3
2
4
1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce reprezintă cifra 6?
masa atomică
numărul atomic
numele elementului
simbolul chimic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Șirurile orizontale din Tabelul periodic se numesc:
grupe
familii
perioade
numere atomice
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Particulă componentă a nucleului, încărcată cu sarcină electrică pozitivă:
Proton
electron
grupă
neutron
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce element este situat în grupa VI A, perioada 3?
Carbon (C)
Phosphorous (P)
Oxygen (O)
Sulf (S)
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