
8. kl keemia - perioodilisustabel
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Marika Eller
Used 7+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Keemiline element on....
looduses leiduv aine
kindla elektronide arvuga aatomite liik
kindla tuumalaenguga aatomite liik
tööstuses kautatav materjal
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perioodilisustabelis on sarnaste omadustega elemendid....
samas rühmas
samas perioodis
kõrvuti
ainult VIIIA rühmas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perioodilisustabeli perioodis on elemendid, millel on ...
samasugune tuumalaeng
ühepalju elektronkihte
ühepalju elektrone väliskohis
sama avastamisaeg
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perioodilisustabelis samas rühmas asuvatel elementidel on...
sama avastaja
8 elektroni väliskihis
ühepalju prootoneid
ühepalju elektrone väliskihis
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aatomile annavad massi...
prootonid ja elektronid
prootonid ja neutronid
elektronid ja neutronid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aatom on kõige püsivam siis, kui...
tal on väliskihis 8 elektroni
tal on ühepalju prootoneid ja neutroneid
tal on positiivne laeng
tal väliskihis 18 elektroni
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pildil on kujutatud...
kahe lihtaine segu
kahe liitaine segu
kahte puhast ainet
liitainet
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