'Drawing lewis diagrams' presentation slideshows

Chapter 13 Structure and Shape

Chapter 13 Structure and Shape. Drawing Lewis Diagrams. 1 Count the total number of valence electrons. If the species is an ion, the number of valence electrons must be adjusted for the charge on the ion. Determine the number of electron pairs.

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Lewis Diagrams

Lewis Diagrams. Lewis Structures. Find your element on the periodic table. Determine the number of valence electrons. This is how many electrons you will draw. Lewis Structures. Find out which group (column) your element is in.

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Rules for Drawing Lewis Diagrams

Rules for Drawing Lewis Diagrams. Determine how many e- will be in drawing Determine the central atom Least electronegative element Needs most e- for octet Has fewest valence e- First listed in formula (not always!) NEVER H! Connect atoms with covalent bonds (2 e-)

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