Periodic Table

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Across
  1. 2. positively charged subatomic particle
  2. 7. neutrally charged subatomic particle
  3. 8. a shiny appearance; usually associated with metals
  4. 11. the letter abbreviation for the element name
  5. 13. the center of an atom; contains protons & neutrons
  6. 15. have properties of both metals and nonmetals
  7. 16. the mass of an element
Down
  1. 1. the vertical columns on the periodic table
  2. 3. the ability of a solid to bend without breaking
  3. 4. the horizontal rows on the periodic table
  4. 5. the number of protons in the nucleus of an atom
  5. 6. solid, shiny luster, ductile, malleable, good conductor, high density, high melting point
  6. 9. no luster, brittle, not malleable, low melting point
  7. 10. negatively charged subatomic particle
  8. 12. smallest part of matter
  9. 14. occupy the outermost shell/orbital/energy level of an atom