C1 Atoms, Elements and Compounds

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Across
  1. 2. Most reactive group 7 non-metal
  2. 7. Particle Particles found in atoms
  3. 11. Atoms that lose electrons when reacting
  4. 13. Technique used to separate liquids with different boiling points
  5. 15. _______ table Layout of all the known elements
  6. 19. ______ pudding Model Atomic model with a positively charged sphere and negative electrons embedded in it
  7. 21. Russian scientist who produced the modern periodic table
  8. 22. Atom with a different number of neutrons but the same number of protons
  9. 23. Newland's ________ Arrangement of atoms that only work for the first 20 elements
  10. 24. ______ Newland Scientist who attempted to
  11. 25. Substance made of only one type of atom
  12. 27. Neutral subatomic particles
  13. 28. Scientist who proved the existence of the nucleus
  14. 30. Centre of the atom
  15. 31. ______ metals Group 1 metals
  16. 32. Atoms that gain electrons when reacting
  17. 33. ______ number states the total mass of an element
  18. 34. Group 7 non-metals
  19. 36. Technique used to separate insoluble solids from a liquid
  20. 38. JJ ______ Scientist who developed the plum pudding model
Down
  1. 1. ______ gases Group 0 elements
  2. 3. ______Bohr Scientist who proved the existence of electron shells
  3. 4. Positively charged subatomic particle
  4. 5. Most reactive alkali metal
  5. 6. Two or more atoms bonded together
  6. 8. Smallest thing in the universe
  7. 9. Substance made from two or more different substances not chemically bonded
  8. 10. John ______ Produced the billiard ball model of atoms
  9. 12. Technique used to separate soluble solids from liquids
  10. 14. _______ Model Atomic model designed by Bohr
  11. 16. Substance made from two or more different atoms bonded together
  12. 17. Negatively charged subatomic particles
  13. 18. shell Location of electrons within an atom
  14. 20. Describes a solid that will dissolve
  15. 22. Describes a solid that will not dissolve
  16. 26. _________ configuration Arrangement of electrons
  17. 29. ________ metals Metals found in the middle of the periodic table
  18. 35. _______ number states how many protons an element has
  19. 37. _______ Particle Experiments Experiments performed by Rutherford