7S Chapter 8 Vocabulary

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Across
  1. 3. The ability of an object to transfer heat
  2. 5. One of the elements in Groups 3-12 of the periodic table
  3. 8. A horizontal row of elements in the periodic table
  4. 13. An element that lacks most of the properties of a metal
  5. 14. The ease and speed with which an element combines, or reacts, with other elements and compounds
  6. 16. A one or two-letter representation of an element
  7. 21. An arrangement of the elements showing the repeating pattern of their properties
  8. 22. An element in Group 1 of the periodic table
  9. 24. A substance that can conduct electric current under some conditions
  10. 25. An element found in Group 17 of the periodic table
Down
  1. 1. The way a mineral reflects light from its surface
  2. 2. The ability of an object to carry an electric current
  3. 4. An element in Group 2 of the periodic table
  4. 6. An element in Group 18 of the periodic table
  5. 7. Small, positively charged particles that are found in the nucleus of an atom
  6. 9. A term used to describe a material that can be hammered or rolled into flat sheets
  7. 10. A term used to describe a material that can be pulled in to a long wire
  8. 11. A small particle in the nucleus of an atom with no electrical charge
  9. 12. The average mass of all the isotopes of an element
  10. 15. A class of elements characterized by physical properties that include shininess, malleability, ductility, and conductivity
  11. 17. The number of protons in the nucleus of an atom
  12. 18. An element that has some characteristics of both metals and nonmetals
  13. 19. A tiny, negatively charged particle that moves around the outside of the nucleus of an atom
  14. 20. Elements in the same vertical column of the periodic table; also called a family
  15. 23. The central core of an atom which contains protons and neutrons