Science

1234567891011121314151617181920212223242526272829
Across
  1. 2. mixture of solid of two / more metals melted
  2. 3. Element symbol is Cu
  3. 4. number number of protons in atom - unique to each element
  4. 8. One of over 100 kinds of atoms which makes up matter, a substance made up of only 1 atom
  5. 9. Path in which electron travel around atom
  6. 11. Amount of matter in object
  7. 12. Element symbol is K
  8. 15. Element symbol is Al
  9. 16. Element symbol is Fe
  10. 17. Element symbol is Au
  11. 20. Element symbol is Na
  12. 22. mineral / element having geometric shapes as result of orderly geometric shapes
  13. 23. A compound (hint either sugar / salt)
  14. 24. Centre of atom
  15. 26. weight number of protons + neutrons in atom
  16. 29. Element symbol is Cl
Down
  1. 1. Combining power of atom
  2. 5. Curved top surface of liquid column
  3. 6. Element symbol is C
  4. 7. mass of substance / unit volume
  5. 10. Element symbol is PB
  6. 13. Element symbol is Hg
  7. 14. Element symbol is S
  8. 18. Element symbol is N
  9. 19. Element symbol is Ag
  10. 21. The inner orbit is designated by this number
  11. 23. Element symbol is An
  12. 25. Element symbol is Ca
  13. 27. Element symbol is O
  14. 28. Element symbol is Sn