Chemistry crossword

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Across
  1. 3. positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
  2. 6. a positive subatomic particle found in the nucleus of an atom
  3. 10. Table a quick reference for associating the name and symbol of an element.
  4. 14. separating a mixture using a filter
  5. 15. Mixture is uniform throughout, the substances are evenly mixed and cannot be visibly distinguished
  6. 17. Formula The formula says what atoms, and how many of each type, are in the
  7. 20. Number the number of protons in the nucleus of an atom
  8. 23. the ability to undergo a chemical reaction with another atom, molecule, or compound.
  9. 25. is a horizontal row of the periodic table.
  10. 26. physical combinations of two or more different substances that retain their own individual properties and are combined physically (mixed together)
  11. 28. a negatively charged subatomic particle found outside of the nucleus of the atom
  12. 29. a subatomic particle with no charge (neutral) found in the nucleus of the atom
  13. 30. what is doing the dissolving (many times water)
Down
  1. 1. substance produced during a chemical reaction
  2. 2. elements and compounds- substances cannot be separated physically
  3. 4. process by which materials deteriorate due to a reaction with oxygen
  4. 5. pure substances that are composed of two or more types of elements that are chemically combined
  5. 7. Mixture is not uniform throughout, the component substances can be visibly distinguished
  6. 8. number written below the line
  7. 9. elements with similar properties that create a “staircase” on the periodic table
  8. 11. substances that cannot be broken down into simpler substances
  9. 12. elements with similar properties found on the right side of the “staircase” on the periodic table
  10. 13. substances that begin the chemical reaction
  11. 14. is a column of elements on the periodic table.
  12. 16. what is being dissolved
  13. 18. Mass the number of protons and neutrons in the atom, measured in AMU
  14. 19. Substance substances that are made of only one type of particle
  15. 21. of Conservation of Mass law that states that matter cannot be created nor destroyed
  16. 22. pure substances that are composed of two or more types of elements that are chemically combined
  17. 24. forms of the same element that contain equal numbers of protons but different numbers of neutrons
  18. 27. elements with similar properties found on the left side of the “staircase” on the periodic table
  19. 30. a mixture of a solute and solvent- homogeneous mixture