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18 questions
Which of these symbols can be used to represent alpha decay?
What is the structure of an alpha particle?
a fast-moving electron
an electromagnetic wave
a fast-moving positron
2 protons and 2 neutrons
An alpha particle has a relative mass of _____.
An alpha particle has a relative charge of _____.
Alpha particles are weakly penetrating. They are absorbed by __________.
Alpha particles are strongly ionising because they have a large relative mass.
True
False
Which of these symbols can be used to represent a beta decay?
A beta-plus particle is a fast-moving __________.
What is the missing value in the table?
Beta radiation is moderately penetrating. It is absorbed by __________.
What is the structure of gamma radiation?
a Helium nucleus
a fast-moving positron
an electromagnetic wave
a neutron
Gamma rays can be absorbed by __________.
Which type of radiation is the most ionising?
Which type of radiation is the most penetrating?
State the relative mass of a gamma ray.
Which type of radiation has zero charge?
In alpha decay...
The mass number increases by 2
The mass number does not change
The mass number decreases by 2
The mass number increases by 4
The mass number decreases by 4
In alpha decay...
The atomic number increases by 2
The atomic number does not change
The atomic number decreases by 2
The atomic number increases by 4
The atomic number decreases by 4
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