Estructura atómica
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
El núcleo de un átomo no contiene:
neutrones
electrones
protones
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Entre las partículas que componen al átomo, la que tiene menor masa es:
protón
neutrón
electrón
núcleo
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
a) ¿Por qué razón el átomo es eléctricamente neutro?
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
El número atómico "Z" indica:
el número de neutrones en el núcleo
el número total de neutrones y protones en el núcleo
el número de protones en un átomo
la suma de protones y electrones
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si un átomo tiene 3 protones y 4 neutrones:
Z=3 y A=4
Z=4 y A=3
Z=4 y A=7
Z=3 y A=7
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
La carga eléctrica presente en el núcleo del átomo es:
negativa, porque allí se encuentran los electrones
positiva, porque contiene protones (positivos) y neutrones (sin carga eléctrica)
nula, porque allí se encuentran los neutrones y éstos carecen de carga
positiva, porque solo contiene protones
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A partir de esta representación podemos afirmar que en el átomo:
hay 12 protones
Z=12
A= 6 + 12
A= 12
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