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Subjects
Science State Board
Class 9
Chemical bonding
Textbook questions
7.
Answer briefly IV
Exercise condition:
4
m.
Complete the table give below.
Element
Atomic
number
Electron
distribution
Valence
electrons
Lithium
2
8
5
3
\(1S^2\)\(2S^1\)
5
1
6
3
Boron
5
6
8
3
\(1S^2\)\(2S^2\)\(2P^1\)
4
6
5
3
Oxygen
3
6
5
8
\(1S^2\)\(2S^2\)\(2P^4\)
3
6
5
4
Answer variants:
Element
Lewis d
ot s
tructure
Lithium
Boron
Oxygen
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