Matter

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Across
  1. 1. positively charged particles inside an atom
  2. 8. negatively charged particles in an atom.
  3. 11. along the zig zag line
  4. 13. a mixture that is evenly mixed throughout
  5. 14. Elements are arranged on a chart called the ________ table.
  6. 16. elements and compounds are pure ____________.
  7. 19. a substance made of two or more different atoms chemically joined
  8. 21. protons and neutrons are found here
  9. 22. elements in the same column up and down on the periodic table are in the same ______
  10. 23. elements in the same group have similar properties and are sometimes referred to as a _______
  11. 25. the protons and the neutrons in the nucleus make up the atomic ______
Down
  1. 2. to the right of the zig zag line
  2. 3. most elements are _______.
  3. 4. the periodic table is arranged by _______________
  4. 5. a mixture that is not evenly mixed
  5. 6. one substance is dissolved in another
  6. 7. elements in the same row across the periodic table are in the same _________.
  7. 9. a substance that contains a variety of elements and compounds that are not chemically combined
  8. 10. a compound that has a pH above 7
  9. 12. particles will settle out if not shaken or stirred
  10. 15. particles inside an atom that have no charge
  11. 17. a substance made of only one kind of atom
  12. 18. a compound that has a pH below 7
  13. 20. a compound that has a pH of 7
  14. 24. the smallest particle of an element that still has the properties of the element