Periodic Table Trends

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Across
  1. 1. ____________ Affinity:the amount of energy released when an electron attaches to a neutral atom
  2. 7. ____________Metal:any metal in Group 1 of the periodic table
  3. 10. _____________charge: the magnitude of positive charge in an atom from the pull on the valence electrons towards the positively charged nucleus
  4. 11. any member of a group of gaseous elements in Group 0 or 18 or VIII A
  5. 14. when the elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties
  6. 17. the tendency for an atom to attract electrons to itself when it is chemically combined with another element
  7. 20. one of a class of elements having properties intermediate to metals and nonmetals
  8. 21. ______________Energy:the energy required to remove an electron from a gaseous atom
Down
  1. 2. _______________Metal:element characterized by addition of electrons to d suborbitals
  2. 3. one of a class of elements that are not lustrous and are generally poor conductors of heat and electricity; nonmetals are grouped on the right side of the periodic table
  3. 4. _____________Earth Metal:any metal in Group 2 on the periodic table
  4. 5. ____________Electrons: Highest occupied energy level s and p electrons
  5. 6. ________________effect: the blocking of valence shell electron attraction by the nucleus, due to the presence of inner-shell electrons
  6. 8. a law stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them
  7. 9. any member of the nonmetallic elements in Group 17 of the periodic table
  8. 12. one-half the distance between the nuclei in a molecule consisting of identical atoms
  9. 13. Positively charged ion resulting from the loss of one or more electrons
  10. 15. one of a class of elements that includes a large majority of the known elements; metals are characteristically lustrous, malleable, ductile, and good conductors of heat and electricity
  11. 16. Negatively charged ion resulting from the gaining of one or more electrons
  12. 18. _______________Transition Metals (Lanthanides & Actinides):an element in the lanthanide and actinide series; characterized by addition of electrons to f orbitals
  13. 19. Elements in Groups 1,2, and 13-18.