1
Q
what’s the equation to electron #
A
2(n)^2
ex: 2(3)^2 =2(9) = 18
2
Q
1 valence electrons lewis model
A
ex: Li •
3
Q
2 valence electrons lewis model
A
Be• he•
• • only for he
4
Q
3 valence electrons lewis model
A
•B•
•
5
Q
4 valence electrons lewis model
A
•
• C •
•
6
Q
5 valence electrons lewis model
A
•
• N :
•
7
Q
6 valence electrons lewis model
A
•
•O :
••
8
Q
7 valence electrons lewis model
A
••
: F •
••
9
Q
8 valence electrons lewis model
A
••
: Ne :
••
10
Q
how does a lewis dot diagram look like if an atom is positive charge
A
[Li] 1+
11
Q
how does a lewis dot diagram look like if an atom is negative charge
A
•• 3-
[ :Ne: ]
••
Chemistry
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