Periodic Table Vocabulary

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Across
  1. 2. mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume.
  2. 3. a column of elements in the periodic table of the chemical elements.
  3. 7. a group in the periodic table consisting of five or six chemically related elements: fluorine, chlorine, bromine, iodine (I), and astatine.
  4. 8. any property that is measurable, whose value describes a state of a physical system.
  5. 11. property of a material that fractures when subjected to stress but has a little tendency to deform before rupture.
  6. 12. a group of elements with similar chemical properties.
  7. 14. degree to which a specified material conducts electricity
  8. 16. material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well.
  9. 19. property of a metal's ability to be distorted below compression.
  10. 21. elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure.
  11. 23. an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell
  12. 25. any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.
Down
  1. 1. the appearance of a mineral surface in terms of its light-reflective qualities.
  2. 4. theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell
  3. 5. negatively charged ion, i.e. one that would be attracted to the anode
  4. 6. nonmetal is a type of chemical element generally characterized by low density, low strength, and a tendency to form acidic compounds.
  5. 9. All elements in a row have the same number of electron shells.
  6. 10. matter is one of the distinct forms in which matter can exist.
  7. 13. very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
  8. 14. as a result of light interacting with our eyes
  9. 15. the ability of a material to be drawn or plastically deformed without fracture
  10. 17. makes it difficult for electrons to move to the conduction band where they can flow and create an electrical current.
  11. 18. make up a class of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.
  12. 20. element whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
  13. 22. an atom or molecule with a net electrical charge
  14. 24. atom or group of atoms that bears a positive electric charge.