ELEMENTS

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Across
  1. 3. Only metal that is liquid at room temperature
  2. 5. Particle with a positive charge that changes the identity and mass of an element
  3. 6. ELement that is necessary for strong bones
  4. 13. Particle with negative charge that changes an elements charge, not mass
  5. 14. Right side of stair step on periodic table, and hydrogen
  6. 15. A substance that has no fixed size or shape
  7. 16. ELement used in batteries and helps with bipolar
  8. 19. Left of stair step on periodic table not including hydrogen
  9. 20. Rows across periodic table
Down
  1. 1. Columns (up/down) on periodic table
  2. 2. A bond with a metal and a metal
  3. 4. substance with 2 or more combined elements
  4. 7. An ion with a negative charge
  5. 8. A bond with a metal and a non metal
  6. 9. A substance in which all particles are alike
  7. 10. Element found in high levels in bananas
  8. 11. Particle with a neutral charge that changes an elements mass
  9. 12. Mostly extracted from sea water
  10. 17. An atom with a positive charge
  11. 18. Element in group 14 period 2