Topic 5.1- Radioactivity
Background
radiation-the small amount of radiation around us all the time because of
radioactive materials in the environment. It mainly comes from natural sources
such as soil, rocks, air, building materials, food and drink – and even space.
Radioactivity
detection- Geiger-Muller tube (G.M. tube)
Radioactive Decay
Alpha decay- two proton and two neutron
left
Beta decay- Gain proton
Gamma emission- No change of proton and nucleon number
Half life
time
taken for half the nuclei present in any given sample to decay. Some nuclei are
more stable than others.
Safety Precaution
-radioactive
stuff is stored in a lead container,
in a locked cabinet
-picked up with tongs, not your feet
-kept
away from the body, not pointed at
people
-left out of its container for as short
a time as possible
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Next Topic
Topic 1 General Physics
Topic 2 Thermal Physics
Topic 3 Properties of Waves, Including Sound and Light
Topic 4 Electricity and Magnetism
Topic 5 Atomic Physics
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I found this note very informative thanks for sharing this!
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