Si un àtom neutre té 20 protons, quants electrons té?
L'àtom

Quiz
•
Chemistry
•
8th Grade
•
Hard
Amparo Gallart
Used 7+ times
FREE Resource
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
20
21
19
22
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un element químic amb nombre atòmic 13, quants protons té??
no ho podem saber
13
26
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si el nombre atòmic d'un element és 17. Quants electrons tindrà si és neutre?
17
16
18
No puc saber-ho
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si el nombre màssic d'un element és 17, quants neutrons té?
19
15
17
No ho puc saber
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El nucli d'un àtom està format per:
protons
protons i electrons
neutrons i protons
neutrons
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En quin any es va descobrir el model atòmic de Dalton?
1897
1806
1808
1911
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En quin model atòmic apareixen per primera vegada els neutrons?
Model atòmic de Rutherford
Model atòmic de Bohr
Model atòmic de Thomson
Model atòmic de Dalton
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