Module 2 Vocabulary

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Across
  1. 1. Any atom with any charge.
  2. 4. When atoms split apart.
  3. 6. A lustrous material that conducts electricity and heat.
  4. 7. A row on the periodic table.
  5. 9. A particle with a negative charge.
  6. 11. A particle of matter that defines an element.
  7. 12. A decrease in the efficiency of nuclear charge due to opposing forces of electrons.
  8. 13. When atoms combine.
  9. 14. A characteristic of matter that expresses itself depending on the ratio of electrons and protons.
  10. 16. An element that has the properties of metals and nonmetals.
  11. 18. A spherical path for objects to travel.
  12. 19. A particle with no charge.
  13. 20. A region in an atom that consists of protons and neutrons.
Down
  1. 1. A nuclear species pertaining the same chemical element.
  2. 2. The simplest form of a substance.
  3. 3. A particle with a positive charge.
  4. 5. The time it takes for something to reach half it's original count.
  5. 8. The ability for something to chemically interact.
  6. 10. Energy released from the decay of nuclei from some atoms and isotopes.
  7. 15. Any element that occupies group seventeen.
  8. 17. A column on the periodic table.