562387
Description
Mind Map by franfrog10, updated more than 1 year ago
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Created by franfrog10
over 10 years ago
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Nuclear Physics
- Atomic Structure
- A small central nucleus composed of protons and
neutrons, surrounded by electrons
- Relative mass and electric charges
- a.m.u. = atomic mass unit
- a.m.u. = atomic mass unit
- An atom has no overall electric charge, as the
no. of protons = no. of electrons
- If an atom loses or gains electrons it
becomes a charged ION
- THE PERIODIC TABLE
- Atoms will always have the same no's of protons,
but different isotopes have different no's of neutrons
- A small central nucleus composed of protons and
neutrons, surrounded by electrons
- Radiation
- Radiation is the high-energy particles or waves that
a decaying atom 'spits out'
- This is a RANDOM process
- This is a RANDOM process
- There are some substances that
give out radiation from the
(unstable) nuclei of their atoms
all the time
- RADIOACTIVE SUBSTANCES
- RADIOACTIVE SUBSTANCES
- There are 3 different types of
radiation
- Alpha
- 'helium nucleus' - 2 protons and 2 neutrons
- 1
- 'helium nucleus' - 2 protons and 2 neutrons
- Beta
- an electron from the nucleus
- Both deflected by electric and
magnetic fields (gamma is not)
- an electron from the nucleus
- Gamma
- electromagnetic radiation from the nucleus
- electromagnetic radiation from the nucleus
- Alpha
- Background radiation is around us all the time
- Radiation is the high-energy particles or waves that
a decaying atom 'spits out'
- Nuclear FIssion
- The splitting of an atomic nucleus
- There are two fissionable substances in
common use in nuclear reactors
- Uranium-235
- Plutonium-239
- Uranium-235
- 1. The nucleus absorbs a neutron
- The splitting of an atomic nucleus
- Nuclear Fusion
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