
Elementos químicos e isótopos
Authored by ELSIE VERA
Science, Chemistry
11th Grade
Used 12+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los neutrones se encuentran en el núcleo.
Verdadero
Falso
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La masa del neutrón es semejante a la del _______
electrón
protón
núcleo
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El número atómico se representa con la letra:
Z
E
A
X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El número másico se representa con la letra:
Z
A
E
X
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El núcleo de los átomos de un elemento químico está compuesto por un número fijo de protones y un número variable de ______
electrones
núcleos
neutrones
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El número másico (A) es igual a:
Z-N
Z+N
E+N
X+Z
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Isótopos son las distintas formas atómicas de un mismo elemento.
Verdadero
Falso
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