
CONFIGURACIÓN ELECTRONICA 7°
Authored by Profesor Pre icfes
Chemistry
3rd Grade
Used 11+ times

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3 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La configuración electrónica de un elemento es 1s2 2s2 2p6 3s2 3p6 , esto nos permite conocer que:
Su número atómico es 18
Presenta 4 electrones en el último nivel de energía.
Pertenece al período 6
Se encuentra en el grupo 6
ninguna de las anteriores
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál de las siguientes configuraciones electrónicas corresponde al átomo de cobre (Cu), de número atómico 29? (En la notación se indican los niveles por números colocados como coeficientes y los índices de las letras indican el número de electrones en ese subnivel):
1s2 2s2 2p6 3s2 3p6 3d10 4p1
1s2 2s2 2p6 3s2 3p6 3d10 4s2
1s2 2s2 2p6 3s2 3p6 3d10 4s1
1s2 2s2 2p6 3s2 3p6 4s10 4p2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un átomo tiene 12 protones, 13 neutrones y 12 electrones. ¿Cuál es su número atómico?
12
13
24
25
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