Periodic Table

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Across
  1. 3. distance from the middle of the atom to the outer electrons
  2. 4. reactive a atom is
  3. 7. that aren't conductive, lustrous, or very malleable
  4. 8. energy required to make an ion
  5. 9. much an atom will share an electron
  6. 10. reactive metals, they form strong alkaline hydroxides
  7. 11. element that is conductive, lustrous, and malleable
  8. 12. properties of an element recur periodically as their atomic number goes up
  9. 13. the middle of the periodic table and form coordination compounds
  10. 14. that have some metallic characteristics and some non-metal
  11. 15. with a full outer shell of electrons and won't react with other elements
  12. 16. set of chemical properties that metals have
  13. 18. negative ion
Down
  1. 1. non-metals and form acidic compounds
  2. 2. amount of energy given off when an ion is made
  3. 5. atom with a different number of electrons
  4. 6. metals that form basic oxides that react with water
  5. 17. positive ion