PERIODIC CLASSIFICATION OF ELEMENTS

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Across
  1. 2. My atomic no.is sum of 1 and 2
  2. 5. I am non-metal and present in liquid state at
  3. 6. I am element having valency 2
  4. 8. I am non-metal with valency 3
  5. 10. I am metal with symbol "Mg"
  6. 11. I have 2 electrons in first shell,8 in second
  7. 14. I am a gas with 8 protons and 8 neutrons
  8. 16. I am metal with atomic no.11
  9. 18. I am a non-metal with 6 neutrons
  10. 19. I am 4 away from the noble gas,Argon with at
Down
  1. 1. I am metal with atomic no.13
  2. 3. I am a noble gas with mass no.40
  3. 4. I am 3 away from noble gas Helium with mass n
  4. 7. I am a metal with symbol"K"
  5. 9. I have the 6th letter of alphabet as my sym
  6. 12. I have mass no.1
  7. 13. I am noble gas with 2 electrons
  8. 15. I am a noble gas with valency 0
  9. 17. I have 15 as my atomic number
  10. 20. I am metal with valency 2