9/27/10

Post date: Sep 27, 2010 2:46:31 PM

Bell Ringer: Write the names for NiCl2, MgCl2, and OCl2.

• • Ionic and covalent naming review

    • Covalent (All elements are from right side of "stair step" on PT)

      • Write names of elements, changing right-most element's ending to -ide

      • Use prefixes to tell how many atoms of each element are present (don't use mono- with the first element, just leave off the prefix)

    • Ionic (One element from left of stair step, one from right on PT)

      • Write names of elements, changing right-most element's ending to -ide

      • No prefixes

      • If the left element is a transition metal (middle of table)

        • "Reverse the cross" to find the charge on the transition metal

        • Write the charge in parentheses (using roman numerals) after the name of the transition metal.

• Bonding practice 2

  • • Just write formulas for ionic side

    • Follow directions as written for covalent side