Nuclear Chemistry MCQs – Chapter 7 DAE

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1. The physical properties of an atom is related to





2. The spontaneous emission of radiations from certain elements is called





3. The radioactive elements are





4. For artificial radioactivity elements are broken down





5. Alpha rays carry a charge





6. Beta rays are actually fast moving





7. Rays have no charge and mass as well





8. Rays are more powerful than x-rays





9. The disintegration of radioactive elements into their half quantity is called





10. Fission means





11. Fusion means





12. One atom of uranium-235 emits neutron on breaking





13. The transformation of one element into another is only possible in reactions





14. All isotopes are





15. The isotope of cobalt is helpful to kill the cancerous cell





16. The study of genetic changes in plants and animals is studied with the help of





17. The structure and nature of polymers can be determined with the help of





18. The half life of C14 is years





19. An archaeologist determined the age of Egyptian pyramids





20. Which isotope of carbon exists





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