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In Lewis Diagrams they use dots to represent the valence electrons.
No more than 2 dots on a side, kind of in a square formation around the symbol.
In covalent bonding, atoms share valence electrons in order to get a full octet. H only wants 2 ve-
shared electrons are counted as owned by both atoms
lines represent shared electrons
steps for drawing a lewis diagram
1) count all the valence electrons
2) determine the central atom (the element there is only one of)
3) draw single bonds to the central atom
4) put all remaining valence electrons on atoms as lone pairs
5) turn lone pairs into double or triple bonds to give every atom an octet or duet
Lewis diagram of SO(4):
S= 6x1=6
O(3)= 6x3=18
_____________
total = 24 ve-
used in bonding -6
________________
remaining = 18 ve-
. .
:O:
. . | . .
:O---S---O:
. . . .
. .
:O:
. . | . .
:O---S---O:
--- . .
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