Valence Electrons Worksheet | PDF - Free Printable

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1. A. Carbon: 6
B. Chlorine: 17
C. Indium: 49
D. Calcium: 20
E. Tungsten: 74
F. Antimony: 51

2. A. Silicon: Outer shell electrons = 4
B. Potassium: Outer shell electrons = 1
C. Sulfur: Outer shell electrons = 6
D. Boron: Outer shell electrons = 3
E. Beryllium: Outer shell electrons = 2
F. Argon: Outer shell electrons = 8

3. F: 7 valence electrons
Cl: 7 valence electrons
Br: 7 valence electrons
I: 7 valence electrons

4. valence

5. He: 1s² → Number of valence electrons in helium: 2
Cl: 1s² 2s² 2p⁶ 3s² 3p⁵ → Number of valence electrons in chlorine: 7
Li: 1s² 2s¹ → Number of valence electrons in lithium: 1
B: 1s² 2s² 2p¹ → Number of valence electrons in boron: 3
F: 1s² 2s² 2p⁵ → Number of valence electrons in fluorine: 7
Ar: 1s² 2s² 2p⁶ 3s² 3p⁶ → Number of valence electrons in argon: 8

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