atomic structure

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Across
  1. 2. metal used by rutherford in his scttering experiment
  2. 3. negatively charged sub atomic particle
  3. 6. neutral subatomic particle
  4. 7. atoms of different elemnt having same mass number
  5. 9. element having zero valency
  6. 11. ion formed by loss of elctron
  7. 13. melon model given by thomson
  8. 14. combining capacity of an atom
Down
  1. 1. rays originate from cathode.
  2. 4. place where neutron and protons are present
  3. 5. an isotope of hydrogen
  4. 8. ion formed by gain of electron
  5. 10. shell having maximum number of electron as 8
  6. 12. atoms of same element having same atomic number but different mass number