
Unidad 3
Authored by Fran Duddana
Chemistry
University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El número de neutrones del átomo de Plata (Ag) es:
108
48
47
61
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El número másico (A) de un átomo cuyos P+ son:78 y n:117 es:
195
192
190
185
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Definición de Isótopos:
Átomos del mismo elemento, con igual número atómico e igual número másico
Átomos de distinto elemento, con igual número atómico pero distinto número másico
Átomos del mismo elemento, con distinto número atómico pero igual número másico
Átomos del mismo elemento, con igual número atómico pero distinto número másico
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cuando el átomo es neutro se cumple:
P=e=A
P=e=Z
Z=A
Todas son correctas
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1s2 2s2 2p6 3s2 3p6 4s2 corresponde a:
Z=18
Z=19
Z=20
Z=21
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
La suma de P+ y n es igual a:
Número Átomico
Número Másico
Z
A
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La distribución electrónica terminada en 3p5 corresponde al átomo de:
Na
Cl
Br
I
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