Physical Science

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Across
  1. 2. Lose electrons to form a positive bond
  2. 5. Electrons surrounding the exterior of atom
  3. 7. No neutron element
  4. 9. Bond through transfer
  5. 11. Different Electron count
  6. 12. Property of elements that allow electricity to pass through
  7. 14. Gain electrons to form a negative bond
  8. 16. Least reactive element group
  9. 18. Size of particles that make elements
  10. 19. group 3 period 6
  11. 20. Horizontal lines on periiodic table
  12. 21. Different neutron count
Down
  1. 1. Bond through sharing
  2. 3. Most reactive metals on table
  3. 4. Negative ion
  4. 6. Vertical lines on periodic table
  5. 8. Rule that bonds will try to reach 8
  6. 10. You know the element from counting these
  7. 13. Positive ion
  8. 15. Property of elements which aren't rigid in form
  9. 17. The negative particle