alpha beta and gamma
DESCRIPTION
Alpha beta and gamma. What is radioactive decay?. What is alpha ( α ) radiation?. 2 neutrons, 2 protons. Description. Note: – An alpha particle is the same as a helium nucleus. +2. Electric charge. 4. Relative atomic mass. Stopped by paper or a few centimetres of air. Penetrating power. - PowerPoint PPT PresentationTRANSCRIPT
Alpha beta and gamma
What is radioactive decay?
Description
What is alpha (α) radiation?
Electric charge +2
Relative atomic mass 4
Penetrating power Stopped by paper or a few centimetres of air
Ionizing effect Strongly ionizing
Effect of magnetic/ electric field Weakly deflected
2 neutrons, 2 protons
Note:– An alpha particle is the same as a helium nucleus
What is beta (β) radiation?Description
Electric charge
Relative atomic mass
Penetrating power
Ionizing effect
Effect of magnetic/ electric field
-1
1/1860
Stopped by a few millimetres of aluminium
Weakly ionizing
Strongly deflected
High energy electron
Gamma () radiationDescription
Electric charge
Relative atomic mass
Penetrating power
Ionizing effect
Effect of magnetic/ electric field
0
0
Stopped by several centimetres of lead or several metres of concrete
Very weakly ionizing
Not deflected
High energy electromagnetic radiation
Types of radiation and penetrating power