
Semana 5 y 6. Tabla periódica, configuración electrónica y PM.1

Quiz
•
Chemistry
•
University
•
Medium
SANDRA GIRALDO
Used 1+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál de los siguientes elementos pertenece al grupo de los metales alcalinos?
Magnesio (Mg)
Sodio (Na)
Aluminio (Al)
Cloro (Cl)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si el peso molecular del amoníaco (NH₃) es 17 g/mol, ¿cuántos gramos hay en 3 moles de amoníaco?
34 g
51 g
17 g
68 g
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El número de electrones de valencia del azufre (Z=16) es:
4
6
8
2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si un gas ocupa un volumen de 44,8 L en condiciones estándar, ¿cuántos moles de gas hay?
1 mol
2 moles
0,5 moles
3 moles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes elementos es un gas noble?
Flúor (F)
Potasio (K)
Neón (Ne)
Fósforo (P)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La configuración electrónica condensada del fósforo (Z=15) es:
[Ne] 3s² 3p³
[Ar] 4s² 3d³
[Ne] 3s² 3p⁶
[He] 2s² 2p⁶ 3s² 3p³
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si se tienen 6,02 × 10²³ moléculas de agua (H₂O), ¿cuántos moles hay?
1 mol
2 moles
0,5 moles
3 moles
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