
Questionário sobre Representação dos Elementos Químicos
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1st Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o símbolo usado para representar o número atômico?
A letra "A".
A letra "Z".
A letra "E".
A letra "M".
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se calcula o número de nêutrons (N) de um elemento químico?
N = A + Z
N = A - Z
N = Z - A
N = Z + A
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual elemento tem o número de massa 197?
Cl
Au
H
O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o número de massa do Cálcio (Ca) em estado fundamental?
40
20
12
16
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quantos prótons possui um átomo de cloro em seu estado fundamental?
16
17
18
19
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o número atômico do Oxigênio (O)?
6
8
9
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como se calcula o número de massa (A) de um elemento químico?
A = Z - N
A = Z + N
A = N - Z
A = Z * N
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