
Revisão de elementos químicos
Science
9th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Número atômico é:
Número de elétrons de um átomo.
Número de nêutrons de um átomo.
Número de prótons de um átomo.
Soma de prótons e néutrons.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Número de massa é:
Número de nêutrons.
Soma de prótons e nêutrons.
Soma de prótons e elétrons.
Soma de elétrons e nêutrons.
3.
MATCH QUESTION
1 min • 1 pt
Relacione o elemento químico com seu símbolo:
Enxofre
Ca
Sódio
Na
Cálcio
S
Cloro
Cl
Zinco
Zn
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Um íon está carregado positivamente quando:
Tem mais elétrons do que prótons.
Tem mais prótons do que elétrons.
Tem a mesma quantidade de prótons e elétrons.
5.
MATCH QUESTION
1 min • 1 pt
Núcleo
Íons
Tem excesso de elétrons(-).
Camadas do átomo.
Eletrosfera
Ânions
Tem excesso de prótons(+).
Região central do átomo.
Átomo em desequilíbrio de prótons e elétrons.
Cátion
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A tabela periódica é organizada em:
Colunas.
Períodos.
Grupos e períodos.
Colunas e períodos.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atualmente temos:
126 elementos químicos.
118 elementos químicos.
92 elementos químicos.
98 elementos químicos.
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