Bonding And Nomenclature Chemical Worksheet - Unit 6
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16Lewis Structures Notes
• Draw the dot diagram for each atom. Make sure you place the electrons in the correct order.
• Draw the dot diagrams for Carbon, Nitrogen and Oxygen.
• Steps for drawing Lewis Structures:
o Order the atoms- the atom with the most unpaired electrons will be the central atom
(Carbon is always the central atom).
o Draw the dot diagram for each element in the compound.
o Pair up all unpaired electrons.
• Examples:
o Phosphorous and Chlorine (PCl
)
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o Carbon and Bromine (CBr
)
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Ionic Dot Diagrams- the electrons are gained and lost, not shared. Put each atom in a bracket
•
with its balance electrons around it. The charge of the atom goes outside of the bracket.
Ex: Sodium Chloride (NaCl)
o
Unit 6: Bonding and Nomenclature
Page 12
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