Matter 1 vocablary

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Across
  1. 1. anything that takes up space
  2. 5. a way to display elements based on protons
  3. 7. a pure substance that cannot be broken down into other substances by chemical or physical means
  4. 8. having a shiny surface or reflecting light brightly
  5. 9. the ability to be drawn into a wire
  6. 12. the average mass of all the isotopes of an element
  7. 13. a horizontal row of elements of the periodic table
  8. 14. ability to be hammered into different shapes
  9. 15. the not charged sub-atomic particle found in the nucleus of an atom
Down
  1. 2. the basic unit that makes up all matter
  2. 3. the positively charged subatomic particle found in the nucleus of an atom
  3. 4. the negatively charged sub-atomic particle found in the space around the nucleus
  4. 6. the ability to have heat & electricity flow through easily
  5. 10. elements in the same vertical column of the periodic table
  6. 11. the number of protons in the nucleus of an atom