
Elementos Químicos
Chemistry
1st Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o símbolo químico do hidrogênio?
He
O
Fe
H
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantos elementos químicos existem na tabela periódica?
92
150
64
118
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o elemento químico mais abundante na crosta terrestre?
Oxigênio
Carbono
Hélio
Ferro
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa o número atômico de um elemento químico?
A massa total do átomo.
O número de elétrons na camada de valência do átomo.
A quantidade de nêutrons no núcleo do átomo.
A quantidade de prótons no núcleo do átomo.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the noble gases in the periodic table?
Nitrogen, Oxygen, Carbon, Sulfur, Phosphorus, Chlorine
Helium, Neon, Argon, Krypton, Xenon, Radon
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que é um período na tabela periódica?
Uma divisão da tabela periódica baseada na massa atômica dos elementos.
Uma linha horizontal que representa o número de camadas de elétrons em um átomo.
Uma coluna vertical que representa os elementos com propriedades químicas semelhantes.
Um grupo de átomos com o mesmo número de prótons.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o elemento químico mais leve?
Ferro
Carbono
Oxigênio
Hidrogênio
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