Structure of all matter

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Across
  1. 5. is made up of atoms
  2. 7. is the table of all elements
  3. 8. is made up of elements
  4. 9. structure of all matter
  5. 10. goes horanzantial on the periodic table
Down
  1. 1. has a negative charge on an atom
  2. 2. is the amount of protons and electrons in an element
  3. 3. id made of only the same atom and is pure
  4. 4. has a neutral effect on an atom
  5. 6. goes vertical on the periodic table
  6. 7. has a positive charge on an atom