Vem var det som först presenterade sin teori om att atomer var odelbara på 400-talet f.Kr.?
Atomer och radioaktivitet
Flashcard
•
Physics
•
8th - 9th Grade
•
Easy
Linnéa 7-9
Used 1+ times
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11 questions
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1.
FLASHCARD QUESTION
Front
Back
Demokritos
2.
FLASHCARD QUESTION
Front
Vad finns det i atomens kärna?
Back
Protoner och neutroner.
3.
FLASHCARD QUESTION
Front
Vad är CERN känt för?
Back
Där finns världens kraftigaste partikelaccelerator.
4.
FLASHCARD QUESTION
Front
Vad säger atomens masstal om atomen?
Back
Det är summan av protoner och neutroner i kärnan.
5.
FLASHCARD QUESTION
Front
Vad säger atomnumret om atomen?
Back
Hur många protoner som finns i atomkärnan.
6.
FLASHCARD QUESTION
Front
Hur många elektroner får plats i K-skalet?
Back
2
7.
FLASHCARD QUESTION
Front
Vad är elektromagnetisk strålning?
Back
Energi som frigörs när elektroner hoppar tillbaka till sina ursprungliga skal.
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