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Title:range of alpha and Beta particles in air

Topic – Physics 2a. Title:range of alpha and Beta particles in air. Monday 8 th February. Prior learning Properties of alpha beta gamma Penetration power through paper, aluminum,Lead Key words Geiger muller counter, Stop clock, penetration.

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Title:range of alpha and Beta particles in air

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  1. Topic – Physics 2a Title:range of alpha and Beta particles in air Monday 8th February • Prior learning • Properties of alpha beta gamma • Penetration power through paper, aluminum,Lead • Key words • Geiger muller counter, Stop clock, penetration

  2. Complete practical activity safely to produce accurate data Design suitable table to record results and discuss findings Draw diagrams to and write equations to show alpha beta and gamma decay Topic – Physics 2a Alpha, Beta, Gamma Radiation s By the end of thi lesson we should be able to:

  3. α ß γ High energy electron formed when a neutron changes into a proton and an electron 2 protons 2 neutrons 2+ charge Wave of EM radiation, highly penetrating Topic – Physics 2a Task 1: Match the symbol

  4. Topic – Physics 2a Recap Alpha deay • Alpha decay • 2 protons 2neutrons (helium particle) • 238U 234Th+ 4α+ energy 92 90 2

  5. Topic – Physics 2a Recap – Beta decay • Beta • (ß) 14C  14N + 0 ß + V+ energy • Beta particles are electrons originating from the NUCLEUS of a radioactive atom. • This occurs when an excess neutron changes into a proton and an electron whilst ejecting an antineutrino particle (uncharged/massless) 6 7 -1

  6. Topic – Physics 2a Recap – Gamma decay • Gamma rays • (light/EM radiation) no mass, uncharged • Usually released after alpha or beta decay • (γ) 131I 131Xe+ 0 e+ γ 53 54 -1

  7. Topic – Physics 2a Task 2: Draw and explain    Thinaluminiumstops beta Thin mica Skin orpaper stopsalpha Thick lead reduces gamma

  8. Topic – Physics 2a Task 1: Experiment 6.2 pg 60 STAWA • Copy background • Aim • Method (use lab notes) • Diagram of set up • Table for results • Hmk = complete post lab discussion 1-5 in lab book

  9. Topic – Physics 2a Summary Task • Read summary 5.2 • Answer 5.2 questions 3,4,5

  10. Complete practical activity safely to produce accurate data Design suitable table to record results and discuss findings Draw diagrams to and write equations to show alpha beta and gamma decay Topic – Physics 2a Alpha, Beta, Gamma Radiation By the end of this lesson we should be able to:

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