P4 Radioactivity 5.0 / 5 based on 5 ratings ? PhysicsRadioactivityGCSEOCR Created by: [email protected]Created on: 14-12-14 18:06 35294711068 Across 1. Which type of radioactivity is the more penetrating (5) 4. Gamma radiation is stopped by a thick sheet of... what? (4) 5. What type of radioactivity is a fast moving electron? (4) 6. What type of radioactivite particle consists of two protons and two neutrons? (5) 8. What is the name of the equipment used to measure radioactivity? (6, 7) Down 2. What is an alpha particle (6, 7) 3. What is the name of the graph that shows the how radioactivity reduces over time? (8, 5) 7. Is radioactive decay a random or ordered process? (6) 9. What is the name for an element with a different number of neutrons? (7) 10. The radioactivity of an isotope took 4 hours to decrease from 100Bq to 25Bq. What is its half-life? (3, 5)
Comments
No comments have yet been made