
Átomos e elementos Químicos
Authored by LUCAS SANTOS
Chemistry, Biology
9th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Quantas camadas eletrônicas (níveis de energia) podem existir em um átomo?
6
5
8
7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Preenchendo a tabela abaixo com as quantidades máximas de elétrons que pode existir em cada camada eletrônica, qual seria a reposta correta?
2, 8, 18, 32, 32, 18, 8
2, 8, 18, 18, 32, 32, 8
2, 8, 32, 32, 18, 18, 8
2, 8, 18, 32, 32, 18, 5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Entre as partículas atômicas, os prótons e nêutrons têm mais massa, mas ocupam um volume muito pequeno em relação ao volume total do átomo.
verdadeiro
falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a carga dos Prótons ?
Positiva
Negativa
Neutra
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O número de massa (A) representa:
a soma do número de prótons e elétrons
a soma do número atômico com o número de elétrons
a soma do número de elétrons e nêutrons
a soma do número de prótons e nêutrons
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Um átomo é ionizado quando:
retiramos elétrons
retiramos nêutrons
retiramos o núcleo
retiramos camadas
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
As partículas fundamentais de um átomo são:
apenas prótons e nêutrons.
apenas elétrons.
prótons, nêutrons e elétrons.
apenas prótons e elétrons.
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