
Tabelul periodic
Authored by NICULAE ANCA
Chemistry
7th Grade
Used 26+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tabelul periodic conține .... perioade:
7
8
18
2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perioadele sunt:
coloane verticale
siruri cu număr egal de elemente
coloane cu număr diferit de elemente
șiruri orizontale
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
numărul de grupe din tabelul periodic este de:
8
18
7
20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Grupele sunt:
coloane verticale
coloane cu număr egal de elemente
șiruri orizontale
în număr variabil în tabelul periodic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Grupa metalelor alcaline este grupa:
2 (IIA)
11 (IB)
1 (IA)
18 (VIIIA)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Grupa 17 (VIIA) se mai numește grupa:
gazelor rare
pământurilor rare
carbonului
halogenilor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxigenul se află în grupa:
16
8
6
2
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