
untitled
Quiz
•
English
•
1st - 5th Grade
•
Practice Problem
•
Hard
Temas Vírgulas
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25 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
O que é um catião?
É um ião negativo.
É um ião positivo.
É um corpúsculo sem carga elétrica
Só pode ser monoatómico.
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
O ião Na+ é um
anião.
átomo.
catião.
corpúsculo sem carga elétrica.
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A carga elétrica do catião Ca2+ é
+1
0
-1
+2
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Um conjunto de um átomo de fósforo e quatro átomos de oxigénio captam três eletrões.
Forma-se um ião
positivo.
negativo.
5.
MULTIPLE SELECT QUESTION
10 mins • 1 pt
Considera as fórmulas químicas dos iões que constam no quadro seguinte.
Indica as afirmações verdadeiras.
São todos catiões.
São todos aniões.
Existem apenas 4 catiões..
Existem 3 aniões.
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
ião cloro.
ião de cloro.
ião cloreto.
átomo de cloro.
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
O núcleo de um átomo é formado por...
protões e eletrões
neutrões e eletrões
protões e neutrões
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