
Configuración electrónica
Authored by ALFONSO HAMAL ORTIZ RAMÍREZ
Chemistry
11th Grade
Used 2+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál es la configuración electrónica del sodio (Na, Z=11)?
Answer explanation
Correcto. Na (Z=11): 1s² 2s² 2p⁶ 3s¹. El sodio tiene 11 electrones distribuidos según el principio de Aufbau.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Determina la configuración electrónica del oxígeno (O, Z=8).
Answer explanation
Correcto. O (Z=8): 1s² 2s² 2p⁴. El oxígeno tiene 8 electrones.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál es la configuración electrónica del ion Ca²⁺ (Z=20)?
Answer explanation
Correcto. Ca²⁺ perdió 2 electrones del orbital 4s, quedando con 18 electrones: 1s² 2s² 2p⁶ 3s² 3p⁶ (configuración de Ar).
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Identifica la configuración electrónica del cloro (Cl, Z=17).
Answer explanation
Correcto. Cl (Z=17): 1s² 2s² 2p⁶ 3s² 3p⁵. Le falta un electrón para completar el octeto.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál es la configuración electrónica del hierro (Fe, Z=26)?
Answer explanation
Correcto. Fe (Z=26): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶. Se llena primero 4s y luego 3d.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Determina la configuración electrónica del ion O²⁻ (Z=8).
Answer explanation
Correcto. O²⁻ ganó 2 electrones, teniendo 10 electrones totales: 1s² 2s² 2p⁶ (configuración de Ne).
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál es la configuración electrónica del cobre (Cu, Z=29)?
Answer explanation
Correcto. Cu (Z=29): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰. Excepción: prefiere tener el subnivel d completo.
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