
The Atom and the Periodic Table
Authored by Joao Pinto
Science
7th Grade

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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No átomo, existem duas regiões: a (a) __________ e a região ao seu redor.
núcleo
nuvem de elétrons
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
No núcleo, existem __________, com carga elétrica positiva, e __________, sem carga elétrica.
protões
neutrões
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
À redor do núcleo, existem __________, os quais tem carga elétrica negativa.
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Num átomo, o número de protões é igual ao número de__________.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes afirmações é verdadeira?
Podemos representar átomos do mesmo elemento químico com símbolos químicos diferentes.
O símbolo químico para sódio é Na.
O núcleo do átomo é eletricamente neutro.
Os átomos são compostos por um conjunto de partículas subatômicas, portanto, não são indivisíveis.
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Os átomos A e B contêm 8 e 9 prótons, respectivamente. Podemos dizer que os átomos A e B são do mesmo elemento químico? Justifique sua resposta.
Evaluate responses using AI:
OFF
7.
OPEN ENDED QUESTION
3 mins • 1 pt
As partículas A, B e C são átomos? Justifique sua resposta.
Evaluate responses using AI:
OFF
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