Periodic Trends Vocabulary

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Across
  1. 2. Natural materials that do not produce heat or electricity and are structurally fragile
  2. 3. an element whose properties are intermediate between those of metals and solid nonmetals or semiconductors
  3. 5. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
  4. 6. colourless, odourless, tasteless, nonflammable gases. Group 0
  5. 9. helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, and fluorine
  6. 11. scandium (Sc), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), and zinc (Zn). Period 4.
  7. 13. any of a class of substances characterized by high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light
  8. 14. the amount of energy required to remove an electron from an isolated atom or molecule
  9. 15. negatively charged ion
  10. 18. the tendency of an atom participating in a covalent bond to attract the bonding electrons
  11. 19. "When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties"
Down
  1. 1. any of the six chemical elements that make up Group 1 (Ia) of the periodic table
  2. 4. the total distance from the nucleus of an atom to the outermost orbital of its electron.
  3. 7. The vertical columns on the periodic table
  4. 8. a horizontal row of the periodic table
  5. 10. positively charged ion
  6. 12. Group 2 elements except beryllium are known as alkaline earth metals. These are so called because their oxides and hydroxides are alkaline in nature and these metal oxides are found in Earth.
  7. 16. a chemical element that forms a salt when it reacts with metal
  8. 17. Russian chemist who devised the periodic table of the elements