L'ÀTOM

L'ÀTOM

2nd Grade

10 Qs

quiz-placeholder

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L'ÀTOM

L'ÀTOM

Assessment

Quiz

Chemistry

2nd Grade

Practice Problem

Medium

Created by

Amparo Gallart

Used 1+ times

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10 questions

Show all answers

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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