
FQ9ASA3 Modelo Atómico e Tabela Periódica
Authored by Joao Pinto
Science
9th Grade
Used 3+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes afirmações corresponde ao modelo atómico de Bohr?
O átomo é uma massa positiva com eletrões dispersos aleatoriamente.
Os eletrões movem-se em órbitas definidas em torno do núcleo.
A massa do átomo está toda concentrada na nuvem eletrónica.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes afirmações é verdadeira segundo o modelo atómico atual?
A massa do átomo encontra-se essencialmente na nuvem eletrónica.
A densidade da nuvem eletrónica é maior próxima do núcleo.
Os eletrões orbitam o núcleo como planetas em torno do Sol.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um átomo com 9 eletrões e 10 neutrões é representado por:
9 19 X
9 10 X
1 0 19 X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Os átomos
3 6 3 6 Y e 3 7 3 7 W são:
Isóbaros
Isótopos
Isótonos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O número de eletrões do ião 20 42 Ca 2 é:
2
18
20
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a distribuição eletrónica do ião 2 4 He?
2
2 – 2
2 – 6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das distribuições eletrónicas abaixo corresponde a um elemento com 8 eletrões de valência?
2 – 8 – 6
2 – 8 – 1
2 – 8
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