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Estructura atómica e Isótopos

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Quiz sobre átomos, isótopos y masa

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Colombia

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Estructura atómica e Isótopos
 

Estructura atómica e IsótoposOnline version

Quiz sobre átomos, isótopos y masa

by Fredy Antonio Verástegui González
1

¿Qué partícula determina el número atómico Z del átomo?

2

¿Qué es un isótopo?

3

¿Qué mide la masa atómica relativa?

4

¿Qué partícula tiene carga positiva en el átomo?

5

¿Qué representa la masa atómica relativa en la escala unificada?

6

¿Cómo se llama la suma de protones y neutrones en un átomo?

7

¿Qué es un isóbaro?

8

¿Qué determina el número másico A?

9

¿Qué describe la distribución natural de isótopos de un elemento?

10

¿Qué unidad se usa para expresar la masa atómica?

Explicación

Z es el conteo de protones en el núcleo.

Isótopos: mismo Z; mayor o menor N cambia la masa.

Se usa la abundancia natural para promediar.

Los protones llevan carga positiva; los electrones negativa.

1 uma es 1/12 de C-12.

A = Z + N.

Isóbaros comparten A, difieren en Z.

A = Z + N.

Cada isóforo tiene una fracción natural.

1 uma es 1/12 de C-12.

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