Grade 8 Chemistry Vocabulary Review

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Across
  1. 1. this scale measures how acidic or basic a substance is
  2. 3. the symbol for gold
  3. 5. created when a solute is dissolved in a solvent
  4. 8. also called 'rows' in the periodic table
  5. 9. this type of bonding involves sharing of electrons between atoms
  6. 11. substances that only contain one type of atom
  7. 13. when an atom loses an electron, it forms this type of charge
  8. 16. these particles are found in energy levelshydro or 'shells' in an atom
  9. 17. this type of substance produces hydrogen ions, H+
  10. 19. when a chemical reaction releases heat energy to the surroundings
  11. 22. positive particles in the nucleus of an atom
Down
  1. 2. this is the gas that is produce when an acid reacts with a alkaline earth metal like Mg
  2. 3. metals all of these elements only have one valence electron in their outermost shell
  3. 4. substances that contain two or more different types of atoms and are chemically bonded
  4. 6. when an atom gains an electron, it forms this type of charge
  5. 7. all of the elements found on the left side of the Boron Staircase
  6. 10. this is the variable that is measured by the experimenter in a scientific experiment
  7. 12. the sum of the protons and neutrons in an atom
  8. 14. this type of bonding involves transfering electrons between atoms
  9. 15. the Russian man who created the modern Periodic Table
  10. 18. the group of the periodic table containing Fluorine, Chlorine and Iodine
  11. 20. a charged particle
  12. 21. otherwise known as the 'universal solvent' and sometimes called 'aqueous'
  13. 23. gases all elements in this group have full outer shells