Title:Alpha, Beta, Gamma Radiation Prior learning –Most atoms are stable –Some naturally occurring atoms are unstable and emit radiation –This causes atom to change into different element or particle. Key words –Atom, proton, neutron, atomic number, mass number, isotope, radioactive. Topic – Physics 2a Thursday 4th February

Alpha, Beta, Gamma Radiation Describe structure of alpha beta and gamma particles Draw diagrams to show penetration of alpha beta and Gamma particles Explain decay of Alpha, beta and gamma particles. By the end of this lesson we should be able to: Topic – Physics 2a

Starter: Match the symbol ß γ α Topic – Physics 2a

Task 1: Make notes on each type of radiation pg 164/165 Include: –Symbol for decay (include numbers) –What the particle consists of? –Example of this particle –Diagram to show decay –What happens to parent nucleus once particle has been emitted? –What is conserved? Topic – Physics 2a

Task 2: Demo of penetration power Topic – Physics 2a

Thin mica Thin aluminium stops beta Thick lead reduces gamma Skin or paper stops alpha    Task 3: Draw and explain Topic – Physics 2a

Alpha, Beta, Gamma Radiation Describe structure of alpha beta and gamma particles Draw diagrams to show penetration of alpha beta and Gamma particles Explain decay of Alpha, beta and gamma particles. I can: Topic – Physics 2a