
Examen de Química
Authored by Karla Jiménez
Chemistry
8th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un átomo de magnesio tiene un número atómico de 12 y una masa atómica de 24. ¿Cuántos neutrones tiene?
12
24
10
14
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un ion tiene 17 protones, 18 electrones y 18 neutrones. ¿Qué tipo de ion es?
Catión con carga +1
Átomo neutro
Anión con carga -1
Catión con carga +2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un átomo neutro de oxígeno tiene un número atómico de 8. ¿Cuántos electrones tiene?
16
8
10
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un átomo tiene 19 protones, 20 neutrones y 19 electrones. ¿Cuál es su masa atómica?
19
20
39
38
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un átomo tiene 12 protones y 10 electrones. ¿Qué tipo de partícula es?
Átomo neutro
Anión con carga -2
Catión con carga +2
Anión con carga -1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes partículas corresponde a un átomo neutro?
11 protones, 12 neutrones, 10 electrones
6 protones, 6 neutrones, 6 electrones
17 protones, 18 neutrones, 18 electrones
12 protones, 12 neutrones, 10 electrones
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un ion tiene 11 protones, 10 electrones y 12 neutrones. ¿Cuál es su carga?
+1
-1
0
+2
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