Across
- 2. Subatomic particle carrying positive charge
- 5. he found that nucleus in an atom is very small
- 7. Discoverer of Gamma rays
- 10. the number of protons in the nucleus of an atom
- 11. streams of electrons produced in a discharge tube
- 13. atoms of an element having different mass number
- 14. charged atoms
- 15. Element that can absorb radiations
- 16. Also called Rontgen Rays
Down
- 1. Proposer of Plum pudding model
- 3. Man who first explained arrangement of electrons in orbits
- 4. Number that depends on number of valence electrons
- 6. spontaneous emission of radiation from an atom
- 8. A type of radiation similar to x-rays
- 9. plate carrying positive charge in a discharge tube
- 12. Radiations with least peneteration power