
propiedades atomicas
Authored by JULIO PEREZ
Chemistry
7th Grade
NGSS covered
Used 32+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El A= 238 y Z= 92. El número de p+ y nO es:
92 – 330
330 – 92
92 – 146
146 – 92
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El número atómico ( Z) me indica:
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indica las partículas del siguiente elemento
17 protones, 20 electrones y 17 neutrones
17 protones, 17 neutrones y 37 neutrones
17 protones, 20 neutrones y 17 electrones
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identifica las partículas en el siguiente ión:
80 protones, 82 electrones y 117 neutrones
80 protones, 78 electrones y 117 neutrones
80 neutrones, 80 electrones y 117 protones
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un elemento tiene Z=25 , si es un átomo con carga +3, ¿Qué cantidad de electrones posee?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La estabilidad del nucleo del átomo se presenta cuando
Se igualan la cantidad de protones y electrones
Hay la cantidad suficiente de neutrones que regulan la repulsión de protones en el núcleo
El número de masa es igual al número atómico
El átomo pierde electrones en su último nivel de energía
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Un catión se forma cuando
un no metal gana electrones
un metal pierde electrones
un no metal pierde electrones
un metal gana electrones
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