Iões e isótopos
8th Grade
•5 Qs
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Iões e isótopos
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Isabel Quadros
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Um átomo de potássio tem 19 protões e 20 neutrões.
Considerando que este átomo perde 1 eletrão, seleciona a representação correta deste ião.
2.
MULTIPLE CHOICE QUESTION
1 min • 10 pts
Selecione a opção que completa corretamente a Tabela.
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Considera o átomo de magnésio constituído por 12 protões e 12 eletrões e no seu núcleo existem 24 partículas.
Seleciona a opção que representa corretamente o ião, que resulta de um átomo de magnésio que perdeu 2 eletrões.
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Considera os átomos representados (as letras não correspondem a símbolos químicos).
Seleciona a opção correta.
Não existem isótopos de um elemento representados
Os átomos X e Z são isótopos.
Os átomos X e Z são têm igual número de massa.
Os átomos Y e Z são isótopos.
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Selecione a opção que completa corretamente a tabela.
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