Chemistry Study Guide

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Across
  1. 2. Part of the nucleus of an atom and has a positive charge
  2. 5. An element intermediate in properties between the typical metals and non metals
  3. 6. a reaction that occurs in which a layer of metal is bonded to the surface of another substance; usually other metal
  4. 9. Part of the nucleus of all atoms except hydrogen and has no charge
  5. 10. the mass of an atom usually known as atomic weight
  6. 11. states that the total number of atoms stay the same
  7. 14. reaction occurs when energy is absorbed making the products of the reaction cooler
  8. 17. reaction occurs when energy is released in the form of heat
  9. 19. number of protons in the nucleus of an atom
  10. 20. element letter for its name
  11. 21. substances present in a chemical reaction that are consumed during the reaction
  12. 22. any group of rare gases with great stability
  13. 24. the rows going across on the periodic table
Down
  1. 1. the columns going down on the periodic table
  2. 2. something that is the result of the process
  3. 3. a combination of atoms bonded together
  4. 4. formulated periodic law
  5. 7. substance that is usually shiny, conducts heat and electricity, and can be melted
  6. 8. outermost number of electrons in the outer orbital
  7. 12. a chemical element that lacks characteristics of a metal
  8. 13. Part of atoms with a negative charge
  9. 15. Central core of an atom has protons and neutrons
  10. 16. regions of space outside the nucleus of an atom where an electron may exist
  11. 18. to form something by combining two separate things
  12. 19. The smallest particle of a substance that can exist by itself
  13. 23. a basic substance that is made of atoms