
Teste de Química 9ºano
Authored by Eduardo Gomes
Chemistry
9th Grade
Used 3+ times

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32 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Um ÁTOMO tem, obrigatoriamente,
um neutrão
um eletrão
um protão
mais eletrões do que neutrões
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Assinale as partículas que apresentam carga elétrica.
Protão
Eletrão
Neutrão
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Existem átomos diferentes de um mesmo elemento.
Verdadeiro
Falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O raio atómico mede o comprimento desde o núcleo até à primeira camada de eletrões.
Verdadeiro
Falso
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Os átomos de elementos diferentes, por terem balanço de cargas igual a zero, têm todos o mesmo tamanho.
Falso
Verdadeiro
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A massa atómica relativa de um átomo indica o número de vezes que a massa do átomo é maior do que a massa de 1/12 do átomo de:
Oxigénio-16
Carbono-13
Carbono-12
Oxigénio-18
Hidrogénio-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numa representação química, o Z indica:
O número de massa, ou seja, o número de protões e de iões
O número de massa, ou seja, o número de protões
O número atómico, ou seja, o número total de partículas fundamentais
O número atómico, ou seja, o número de protões
O número de massa, ou seja, o número de neutrões
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