ionising radiation mind map
- Created by: Ntando
- Created on: 08-03-16 19:36
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- Alpha
- ion sing radiation
- Beta
- 1.stopped by thin metal
- 2. moderately ionising
- push an electron out of orbit because of its negative charge
- 3. light and fast
- its an electron
- every beta particle emitted a neutron turns to a proton in the nucleus
- beta -
- happens when there are to many neutron
- beta -
- every beta particle emitted a neutron turns to a proton in the nucleus
- light and fast
- beta +
- just like electrons but positively charged
- same properties known as positrons
- protons turn into neutrons in the nucleus
- same properties known as positrons
- happens when there are to many protons
- the proton nuber decreases by one and the nucleon number stays the same
- just like electrons but positively charged
- gamma rays
- elctromagnetic radiation
- weakly ionizing
- gives electrons energy to enough energy to escape orbit
- stopped by thick lead
- no, mass very fast
- after a and B decay nucleus the nucleus often has excess energy
- gamma always goes with alpha or beta decay
- what is it?
- isotopes are atoms with the smae number of protons but different neutrons
- when an atom gains or loes and electron it turns into an ion and alpha gamma and beta make this happen
- isotopes are atoms with the smae number of protons but different neutrons
- neutron radiation
- neutrons are more penetrating than alpha and beta sometimes gamma
- absorbing a neutron can make a nucleus radioactivity
- the nuclei emits ion sing radiation
- thats why sometimes called indirectly ionsing
- the nuclei emits ion sing radiation
- best absorbed by light nuclei like hydrogen and hydrogen rich martiels like water polythene
- normally makes gamma radition
- Beta
- a helium nuclei
- two protons two neutrons
- slow and heavy
- strong ionizing
- have a strong postive charge which means it can pull an elctron away from its ion
- stopped by paper
- ion sing radiation
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