



2
What are valence electrons?
Valence electrons in magnesium?
81a
81b
81c
81d
82 list all 3(first, second,.....)
85 a use 1s^2 2s^2......etc.
85 b use 1s^2 2s^2......etc.
85 c use 1s^2 2s^2......etc.
85 d use 1s^2 2s^2......etc.
86 a use [noble gas] 2s^2......etc.
86 b use [noble gas] 2s^2......etc.
86 c use [noble gas] 2s^2......etc
86 d use [noble gas] 2s^2......etc
87a
87b
87c
87d
87e
87f
90a
90b
90c
90d
90e
92
98 list(element, element, ....
6
7
8