Radioactive IGCSE
Across
- 5. Gama rays are ............. by magnetic or electric feilds
- 6. The ..............contains both protons and neutrons
- 10. ......... particles will be deflected towards the negative pole of a magnetic field.
- 12. exposure to radiation can cause mututaions in cells resulting in .........
- 13. Alpha particles has the ......... ionizing effect
- 16. Nuclear accidents and nuclear testing are forms of .......... radiation
- 19. ...... can be detected underground using radiation source
- 20. This electromagnetic wave has no mass or charge
- 21. This type of radioactive particle has 2 protons and 2 neutrons
- 22. A ................ has a positive charge and a mass of 1
- 23. A ..................has no charge and a mass of 1
- 24. .......... can be used to stop alpha particles
Down
- 1. An ............... has a negative charge and has very small mass
- 2. ............effect is the ability to remove electrons from other atoms
- 3. This type of radioactive particle is a high speed electron
- 4. Gamma radiation has the .......... ionizing effect
- 7. The ...............is the sum of the protons and neutrons
- 8. Ernest Rutherford's model of the atom is called the ..............
- 9. The ...............indicates the number of protons
- 11. ............can be used to protect us from Gamma radiation
- 14. .........particles will be deflected towards the potive pole of a electric field.
- 15. ...........like Al can be used to stop Beta particles
- 17. cosmic rays is a form of .......... radiation
- 18. .............refers to the time taken for a radioactive sample to reduce its mass/radiation count by half..