atomos

atomos

7th Grade

12 Qs

quiz-placeholder

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atomos

atomos

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Medium

Created by

Ruth Aguilar

Used 234+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El átomo está conformado por 

Electrones y protones
Electrones y Neutrones
Neutrones, Protones y Electrones
Neutrones y Protones

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

El número atómico de un elemento se simboliza con la letra

A

B

P

Z

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El número atómico ( Z) me indica:

la cantidad de Neutrones 
La cantidad de protones
La cantidad de protones y tambien de electrones que tiene un atomo NEUTRO
La cantidad de electrones de un atomo

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

El segundo elemento de la tabla periódica es

El Litio
El Hidrogeno
El Carbono
El Helio

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Señale el número atómico (Z) del Hidrógeno

1

2

3

4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

El siguiente elemento tiene 21 neutrones. Determine la masa del elemento.

20

21

41

40

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un átomo neutro posee 15 protones y 10 neutrones. ¿Cuántos electrones tiene?

15

10

25

5

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