Modelos atómicos e distribuição eletrónica
Quiz
•
Chemistry
•
1st Grade
•
Practice Problem
•
Hard
Professor Prof
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14 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seleciona a única afirmação que não está em desacordo com o modelo atual de átomo.
O átomo é uma estrutura compacta de protões, neutrões e eletrões.
O átomo tem uma zona central de carga negativa chamada núcleo.
O núcleo atómico tem massa desprezável comparativamente à dos eletrões.
O átomo tem uma zona central muito pequena, com carga positiva, e à volta uma zona muito maior praticamente sem massa.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Considera a seguinte tabela.
Seleciona o valor da masssa atómica relativa do magnésio.
23,47
24,31
24,81
25,28
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seleciona o nome do cientista a que se deve o primeiro modelo atómico.
John Dalton
Joseph Thomson
Ernesto Rutherford
Bohr
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seleciona o nome do cientista a que se deve a descoberta do protão.
John Dalton
Joseph Thomson
Ernesto Rutherford
Bohr
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seleciona o nome do cientista a que se deve a descoberta do eletrão.
John Dalton
Joseph Thomson
Ernesto Rutherford
Bohr
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considera a representação do átomo de magnésio.
Seleciona a opção que indica o número de protões, eletrões e neutrões.
12
24
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera a representação do átomo de magnésio.
Seleciona a opção que representa a distribuição eletrónica do átomo de magnésio.
2-8-2
8-2-2
2-8-8-6
2-6-8-8
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