
UNAM_QUÍMICA_SEMIM_E1
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿En cuál de las siguientes opciones hay materiales formados únicamente por elementos?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuáles son compuestos?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A continuación se presentan elementos químicos con números entre paréntesis que indican su número atómico: Argón (14) Potasio (19) Calcio (20) Níquel (28) De acuerdo con la información, ¿qué enunciado es verdadero?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La siguiente tabla describe 4 átomos diferentes con el número de protones, electrones y neutrones que tiene cada uno. En relación con ellos, podemos afirmar que:
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acuerdo con la clasificación de elementos de la tabla periódica, ¿qué enunciado es correcto?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué elemento tiene la siguiente configuración electrónica? 1s2 2s2 2p6 3s2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la configuración electrónica del K? Considera Z=19 y A=39
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