Warm Up #4 Nickel (III) Sulfate  _ + _

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Warm Up #4 Nickel (III) Sulfate  ___ + ___ Write the orbital notation (1s22s2…) for: Chlorine and Magnesium What would chlorine prefer to do to fulfill the octet rule? How do you think this would affect its orbital notation. How would these things change for magnesium?

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Review Valence Electrons – electrons in the outermost shell Goal: 8 Valence electrons (octet rule) Two solutions: Ions (cations or anions) - + or – charge Ionic Bonds – metal and non-metal WHAT ABOUT NON-METAL AND NON- METAL?

Since Electron Configs are a Lie… When writing elements with valence electrons… Lewis Dot Structures – Element symbol in center, with dots surrounding it (valence electrons)

. . . . N Lewis Dot Structures Example: Nitrogen (N) Valence Electrons: 5 TREAT IT LIKE A SCHOOL DANCE Symbol in center One valence electron on each side . . . N .

. . . . . N Time For the Romance… One More valence electron left… Pair with ONE of the valence electrons . . YES! I HAVE A DATE TO THE PROM! . . YEAH…YOU SUCK PAIRED ELECTRONS… N .

Quick Quiz #3 Write the Lewis Dot Structures for the Following: Hydrogen Aluminum Carbon Sulfur Bromine Krypton