
Examen Isotopos
Authored by Nilda Rivera
Chemistry
11th Grade
Used 4+ times

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23 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
La tabla periódica tiene _________________.
109 elementos
100 elementos
118 elementos
120 elementos
2.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
. La suma de los protones y neutrones se conoce como ___________.
Número protónico
Número atómico
Masa atómica
masa protónica
3.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
El carbono tiene un número atómico de 6. Esto significa que tiene __________.
12 protones
6 neutrones
12 neutrones
6 protones
4.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
El isótopo de un elemento se identifica con el nombre del elemento seguido _______________.
de la masa atómica
del número atómico
del número protónico
ninguna de las anteriores
5.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Si un isótopo de plomo, el plomo 207, tiene 82 protones ¿cuántos protones tiene el plomo 178?
207
29
178
82
6.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Un átomo de plata con 47 protones, 47 electrones y 61 neutrones tiene un número de masa de:
108
94
154
47
7.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Observa la siguiente imagen. ¿Qué representan los átomos?
elementos comunes
elementos diferentes
isótopos diferentes
2 elementos iguales y 1 isótopo
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