The Periodic Table

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Across
  1. 5. horizontal rows on the periodic table; 7 numbered ________s on the periodic table
  2. 6. another name for a group
  3. 8. table/ table of chemical elements arranged in order of atomic number
  4. 9. metals/ form colored ion compounds
  5. 11. metal/ in Group 2 of the periodic table
  6. 13. electron/ electron in its highest occupied energy level of an atom
  7. 14. has luster; malleable; excellent conductors of heat and electricity
  8. 15. has properties of both metals and nonmetals
  9. 17. configuration/ arrangement of electrons of an atom in its ground state into various orbitals(shells) around the nuclei of atoms
Down
  1. 1. gas/ in Group 18 of the periodic table
  2. 2. energy/ energy it takes to remove a valence electron
  3. 3. vertical columns on the periodic table; 18 numbered ________ s on the periodic table
  4. 4. the ability of an atom to attract electrons when the atom is in a compound
  5. 5. law/ when the elements are arranged in order of increasing atomic number
  6. 7. Halogen; liquid; in Group 17
  7. 10. solids are brittle; non conductors; exist in all phases
  8. 11. mass/ the weighted average of the masses of the isotopes of an element
  9. 12. metal/ in Group 1 of the periodic table
  10. 16. only liquid metal