Atomic Structure and Radioactivity (MCQ's)(IGCSE 0625 CLASSIFIED WORKSHEET WITH ANSWERS)

This worksheet contains 132 Mcqs from the past 10 year papers. It includes
Describe the structure of an atom in terms of a
positive nucleus and negative electrons
Describe how the scattering of α-particles by
thin metal foils provides evidence for the nuclear atom
Describe the composition of the nucleus in terms of protons and neutrons
• State the charges of protons and neutrons
• Use the term proton number Z
• Use the term nucleon number A
• Use the term nuclide and use the nuclide notation
• Use and explain the term isotope
• Balance equations involving nuclide notation
Demonstrate understanding of background
radiation
• Describe the detection of α-particles, β-particles
and γ-rays (β+ are not included: β-particles will be taken to refer to β–)
Use equations involving nuclide notation to represent changes in the composition of the nucleus when particles are emitted
Calculate half-life from data or decay curves from which background radiation has not been subtracted