Justin's Chem Crossword

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Across
  1. 3. Combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  2. 5. Change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  3. 10. Group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  4. 12. Chemical combination of two or more elements in a specific ratio
  5. 14. The smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
  6. 16. Group 17 elements in the periodic table; the most reactive non-metals
  7. 17. Combination of pure substances; unlike a compound, the components of a mixture do not combine chemically and are not always in the same ratio
  8. 21. Positively charged particle in the nucleus of an atom
  9. 22. A solution in which water is the solvent\
  10. 23. Pure substance that cannot be broken down into other substances; substance made up of only one type of atom
Down
  1. 1. unit Measure of atomic mass
  2. 2. Group of atoms joined by covalent bonds
  3. 4. Description of how a substance interacts with other substances, such as acids; chemical properties are observable only when a chemical change occurs
  4. 6. Cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  5. 7. Group 18 elements in the periodic table; the most stable and unreactive elements
  6. 8. Pure substance formed when non-metals combine
  7. 9. A reaction that takes place when two or more substances react to form new substances
  8. 11. shell Orbit of electrons around the nucleus of an atom
  9. 13. Description of a solid that can be stretched into a long wire
  10. 15. Reaction between an acid and a base that produces water and a solid compound called a salt
  11. 18. Number of protons in the nucleus of one atom of an element
  12. 19. Change of state from a gas to a liquid
  13. 20. Cloudy mixture in which tiny particles of one substance are held within another, and the particles can be separated out