
Átomos e elementos químicos
Chemistry
1st Grade
Used 11+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A quantidade de prótons e nêutrons de qualquer átomo são sempre iguais
Verdadeiro
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um átomo perder ou ganhar elétrons seu número atômico muda
Verdadeiro
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Átomos do mesmo elemento químico possuem sempre o mesmo número atômico
Verdadeiro
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Átomos são as unidades formadoras de toda a matéria no universo, sendo que eles não podem divididos e não existe nenhuma partícula menor que eles.
Verdadeiro
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5.
DRAG AND DROP QUESTION
1 min • 3 pts
No modelo atômico mais atual, os átomos são compostos por três partículas subatômicas: os (a) que têm carga positiva, os (b) que tem carga elétrica nula e os (c) que possuem carga negativa.
6.
LABELLING QUESTION
1 min • 3 pts
Observe a representação do íon positivo do elemento químico Titânio. Indique qual é a quantidade correta de prótons, elétrons e nêutrons neste cátion.
7.
DRAG AND DROP QUESTION
1 min • 3 pts
Quando um átomo do elemento Flúor recebe um elétron ele se torna um íon de carga (a) e fica com uma carga de valor (b) .
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