
Explorando a Radioatividade
Authored by ELTON LINCOLN PEYERL DE SOUZA
Chemistry
10th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes partículas é emitida durante a radiação alfa?
Elétron
Nêutron
Próton
2 prótons e 2 nêutrons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A radiação beta é composta por:
Núcleos de hélio
Elétrons
Raios X
Nêutrons
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes radiações possui maior poder de penetração?
Radiação alfa
Radiação beta
Radiação gama
Radiação ultravioleta
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O 22388Ra tem aplicação medicinal no tratamento de tumores. Na reação de decomposição desse radioisótopo, são formados um determinado átomo e uma partícula alfa. Nessa reação o átomo formado corresponde ao seguinte elemento químico:
Rn (Z = 88)
Fr (Z = 87)
Ac (Z = 89)
Rn (Z = 86)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marie Curie descobriu o elemento polônio no ano de 1898. Considerando que uma amostra de 100 gramas desse elemento foi armazenada na data da sua descoberta, e que sua meia-vida é de 120 anos, em que ano restarão 25 gramas de polônio?
2018
2138
1898
2258
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes equações representa uma reação de decomposição com liberação de uma partícula alfa?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine os valores de x e y:
6027Co → xyNi + 0-1𝜷
X = 60 e Y = 28
X = 60 e Y = 27
X = 60 e Y = 29
X = 28 e Y = 60
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