
Estructura atómica actual
Authored by Sonia Yaya
Chemistry
1st - 11th Grade
Used 19+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
El selenio es un micronutriente que se encuentra en los cereales, el pescado, las carnes, las lentejas, entre otros. Con respecto al isótopo, es incorrecto:
Su carga nuclear es 34
Posee 46 neutrones
Al ganar 2e-, su notación es Se2+
En su envoltura presenta 34 partículas negativas.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
"El protón del carbono y plata tienen diferente tamaño y masa"
Verdadero
Falso
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Un átomo neutro con número atómico 27, pierde 3e-, ¿Cuál es el nombre de la especie formada?
Anión trivalente
Catión trivalente
Anión tervalente
Catión trinegativo
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El itrio es un metal que se utiliza para la fabricación de aleaciones. Indicar el número de partículas fundamentales de la especie.
89
128
131
125
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un átomo es isóbaro con 1840Q e isótono con 2550M. Hallar su número atómico.
18
15
25
28
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las especies mostradas son:
Isótopos
Isóbaros
Isótonos
Hílidos
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dos isóbaros poseen números atómicos que suman 87 y presentan en total 93 neutrones. Señalar el número de masa:
85
18
90
89
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