Alkálifémek és vegyületeik
8th - 12th Grade
•15 Qs
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Alkálifémek és vegyületeik
Quiz
•
Chemistry
•
8th - 12th Grade
•
Practice Problem
•
Medium
Fruzsina Kertes
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A lítium-oxid helyes képlete:
Li2O
Li2O5
LiO
LiO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Az alkálifémek főcsoportszáma a periódusos rendszerben:
I. A
II. A
III.A
VII. A
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyik nem tartozik az alkálifémek közé?
Na
K
Ca
Li
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jellegzetesen erőteljes, sárga színű lángfestése van
Na
K
Li
Rb
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A gázégő lángját bíborvörös színűre festi.
Li
K
Na
Cu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Az alkálifémek vegyértékelektronjainak a száma
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Az alkálifémek keménysége:
kicsi
nagy
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