Examen parcial de química
Quiz
•
Chemistry
•
7th Grade
•
Medium
Jorge Reyes
Used 3+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A la luz que se genera por parte de un material que es excitado con energía eléctrica o calor se le conoce como:
Espectro continuo
Espectro de absorción
Espectro de emisión
Espectro de producción
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos neutrones tiene un elemento X cuyos valores de A y Z son 75 y 20 respectivamente?
75
20
55
95
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Modelo atómico que propone que los átomos son esferas con cargas eléctricas positivas y negativas
Dalton
Thomson
Rutherford
Bohr
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Personaje que descubre el electrón
Dalton
Thomson
Rutherford
Bohr
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
¿Cuál es el elemento de la tabla periódica que tiene 43 protones?
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Si un elemento "X" tiene 25 protones, 64 neutrones y 14 electrones ¿Cuál es su vaor de A y Z?
Represéntalo en el orden mencionado, tal como el ejemplo:
19, 25
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente imágen ¿Qué cargas deben tener ambos cuerpos para que suceda el fenómeno observado?
Ambas positivas
Positov uno y negativo el otro
Ambas negativas
Negativo uno y positivo el otro
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