
L'ÀTOM
Authored by Amparo Gallart
Chemistry
2nd Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un àtom està format per:
electrons
protons i neutrons
protons i electrons
protons, neutrons i electrons
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un àtom neutre és aquell que:
no té càrrega
té la mateixa càrrega positiva que negativa
tés més protons que neutrons
només té neutrons
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El nombre atòmic (Z) representa:
quantitat d'electrons
quantitat de protons
quantitat de neutrons
quantitat de protons + neutrons
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El nombre màssic (A) indica:
quantitat de protons
quantitat d'electrons
quantitat de protons i electrons
quantitat de protons i neutrons
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sabent que un àtom neutre té Z=5 i A=9
5 protons, 9 neutrons i cap electró
5 protons, 4 neutrons i 5 electrons
9 protons, 9 electrons i 5 neutrons
4 protons, 5 electrons i 5 neutrons
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
L'element amb Z=8 és
litio
carbono
oxígeno
hierro
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Les partícules que estan presents al nucli d'un àtom són:
protons
neutrons
protons i neutrons
electrons
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