Na Tabela Periódica a percentagem de metais é de _____.
Os metais na economia

Quiz
•
Alexandra Camelo
•
Chemistry
•
12th Grade
•
3 plays
•
Medium
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
55%
20%
30%
80%
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Os metais agrupam-se em alcalinos, transição, transição interna e _________________.
alcalinoterrosos
halogéneos
gases nobres
transição externa
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Quimicamente, o aço e o ouro nórdico são ___________.
halogéneos
ligas metálicas
metais
nenhuma das opções anteriores
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
O ouro nórdico é composto por...
89% Cu, 5% Al, 5% Zn e 1% Sn
89% de Cu, 11% Al
por 89% Fe, 5% Al, 5% Zn e 1% Sn
por 89% de Fe, 5% Au, 5% Zn e 1% Sn
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
As moedas de 1 e 2 euros são constituídas por...
latão niquelado
cuproníquel
cuproníquel e latão niquelado
nenhuma das anteriores
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Em 2020 em Portugal as pessoas empregas no setor de mineração e pedreiras correspondia a _____ da população empregada.
0,360%
12%
50%
0,100%
7.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Geralmente, uma liga metálica tem menor ________________ do que o metal
maioritário.
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