Periodic Table Project

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Across
  1. 3. Silvery gray metals, Extremely soft, and have melting and boiling points.
  2. 5. Electrons in the highest energy level and are the outermost electrons.
  3. 10. An alkali Metal.
  4. 11. The charge of oxygen as an ion.
  5. 12. Transition Metal in period five.
  6. 13. React violently with most nonmetals.
  7. 15. A metalloid on the periodic table.
  8. 16. A way to visualize an atom's structure and potential to bond.
  9. 20. Radioactive and man made group.
  10. 22. Noble Gas; located in the second period.
  11. 23. React with water to make strong bases.
  12. 25. has a high electronegativity, and only group that contains solids, liquids, and gases.
  13. 26. He recognized that atomic number is the basis for the organization of the periodic table.
  14. 27. Shiny, dense, ductile, and are good conductors of heat.
Down
  1. 1. Can be shiny and dull; shape can be easy or hard to change.
  2. 2. Metals become _____ when they are ions.
  3. 4. Rare earth metals, shiny and silvery white, tarnishes, and have high melting and boiling points.
  4. 6. Oxidize in air, Not found alone in nature, and react with water to form bases.
  5. 7. The most reactive nonmetal.
  6. 8. Dull, brittle, and have low melting point.
  7. 9. Nonmetals become _____ when they are ions.
  8. 14. Colorless, odorless, and tasteless.
  9. 17. Transferring electrons from one atom to another.
  10. 18. Ductile and malleable, good conductors, and ores come from ores in the earth's crust.
  11. 19. Russian chemist that looked for common properties in elements.
  12. 21. Halogen; located in the fourth period.
  13. 24. The first person who developed a periodic table by increasing atomic mass, but it was incomplete.