
Massa Atômica: Prótons e Nêutrons
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Medium
ALESSANDRA PATRICIA DAVANZO
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número de massa (<katex latex="A"></katex>) de um átomo é igual à soma de quais partículas subatômicas?
Prótons e elétrons
Prótons e nêutrons
Nêutrons e elétrons
Apenas prótons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um átomo possui 12 prótons e 13 nêutrons, qual é o seu número de massa (<katex latex="A"></katex>)?
25
12
13
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula correta para calcular o número de massa (<katex latex="A"></katex>)?
<katex latex="A = Z + N"></katex>
<katex latex="A = Z - N"></katex>
<katex latex="A = Z \times N"></katex>
<katex latex="A = Z / N"></katex>
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa o número atômico (<katex latex="Z"></katex>) de um elemento químico?
Número de nêutrons
Número de prótons
Número de elétrons na última camada
Número de massa
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um átomo de sódio (<katex latex="Na"></katex>) possui número atômico 11 e número de massa 23. Quantos nêutrons ele possui?
12
23
11
34
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se um átomo tem 20 prótons e 20 nêutrons, qual é o seu número de massa?
40
20
0
400
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número de massa de um átomo é representado por qual letra?
<katex latex="Z"></katex>
<katex latex="N"></katex>
<katex latex="A"></katex>
<katex latex="P"></katex>
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