What you’ll learn4 learning objectivesChoose one objective for a focused lesson, or study the complete topic.5.2.2.1Emission of radiation from a nucleus• Describe the emission of radiation from a nucleus as spontaneous and random in directionSyllabus objective5.2.2.2Alpha (α), beta (β) and gamma (γ)• Identify alpha (α), beta (β) and gamma (γ) emissions from the nucleus by recalling: (a) their nature (b) their relative ionising effects (c) their relative penetrating abilities (β+ are not included, β-particles will be taken to refer to β–)Syllabus objective5.2.2.3Deflection of α-particles, β-particles• Describe the deflection of α-particles, β-particles and γ-radiation in electric fields and magnetic fieldsSyllabus objective5.2.2.4Their relative ionising effects with• Explain their relative ionising effects with reference to: (a) kinetic energy (b) electric chargeSyllabus objective