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Paper 1
Atomic Structure
Atoms and Isitopes
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General
GCSE > Physics > Paper 1 > Atomic Structure > Atoms and Isitopes
22 cards
Describe the characteristics of beta particles
GCSE > Physics > Paper 1 > Atomic Structure > Atoms and Isitopes
3 cards
Describe the characteristics of alpha particles
GCSE > Physics > Paper 1 > Atomic Structure > Atoms and Isitopes
3 cards
Cards (47)
Electrons
orbit the
nucleus
at different
energy levels
called
shells
or
electron clouds.
Protons have a
positive
charge, electrons have a
negative
charge, and
neutrons
are neutral.
The nucleus is made up of
protons
and
neutrons
The first two shells can hold up to
eight
electrons, while
higher-energy
shells have
lower
occupancy limits.
Where does fusion happen?
Star
Where do chain reactions happen?
Nuclear reactor
Where does alpha decay happen?
Nucleus
of an
atom
Types of nuclear radiation:
Alpha
Beta
Gamma
Suggest what happened in 1932 to change the idea that atoms contained only protons and electrons.
Neutrons
were
discovered
The
nucleus
of a
uranium-235
atom must absorb a particle before the atom is able to split. What type of particle is absorbed?
Neutron
The
nucleus
of an atom splits into smaller parts in a
reactor.
What name is given to this process?
Fission
Name another natural source of background radiation.
Radon
Cosmic Rays
Rocks
Food
Name another artificial source of background radiation.
X rays
Nuclear power
Nuclear accidents
Nuclear weapon testing
Why does an atom that decays by emitting alpha or beta radiation become an atom of a different element?
Number of
protons
changes
Isotopes
the same number of
protons
but different numbers of
neutrons
Radioactive
Substance that gives out radiation
What is an alpha particle?
A
helium
nucleus
Beta decay does not cause the mass number of an atom to change. Explain why not.
number of
neutrons
decreases by one
number of
protons
increases by one
Explain why the teacher wears polythene gloves when handling radioactive materials.
Prevents contamination
which could cause
contamination
over a
long period
of
time
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