By Daniel R. Barnes Init: 11/15/2005

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Presentation transcript:

By Daniel R. Barnes Init: 11/15/2005 Lewis Structures By Daniel R. Barnes Init: 11/15/2005

WARNING: As with everything you learn in chemistry class, or anywhere in school, the following is a gross oversimplification of reality.

SWBAT . . . . . . draw Lewis structures. Rn

* help chemists predict the behavior of elements. Lewis Structures * help chemists predict the behavior of elements. * are based on the electron configurations of the elements. * are determined by elements’ positions on the periodic table. * are more easily understood if you first know how the periodic table is arranged.

“s” block “d” block “p” block “f” block

Inner Transition Metals Hydrogen Halogens Alkali Metals Noble Gases Alkaline Earth Metals H Transition Metals Inner Transition Metals

Inner Transition Metals Hydrogen Halogens Alkali Metals Noble Gases Alkaline Earth Metals H Transition Metals “s” block “d” block “p” block Inner Transition Metals “f” block

X X “s” block “d” block “p” block “f” block

H “s” block “p” block

He “s” block “p” block

Li “s” block “p” block

Be “s” block “p” block

B “s” block “p” block

N “s” block “p” block

Ne “s” block “p” block

Si “s” block “p” block

Ba “s” block “p” block

Br “s” block “p” block

Rn “s” block “p” block

Cs “s” block “p” block

C “s” block “p” block

S “s” block “p” block

Tl “s” block “p” block

I “s” block “p” block

Sb “s” block “p” block

Se “s” block “p” block

8A 1A 5A 7A 2A 3A 4A 6A “s” block “p” block

- + 8A 1A Cl Na 2A 3A 4A 5A 6A 7A ionic bond “s” block “p” block

8A 1A F F 2A 3A 4A 5A 6A 7A covalent bond “s” block “p” block

N N Triple covalent bond Nitrogen atom dot count = 5 6 7 8 8A 1A 2A 3A “s” block “p” block Nitrogen atom dot count = 5 6 7 8

N N Triple covalent bond Nitrogen atom dot count = 5 6 7 8 8A 1A 2A 3A “s” block “p” block Nitrogen atom dot count = 5 6 7 8

http://www.kentchemistry.com/links/bonding/lewisdotstruct.htm