Worksheet for learning about valence electrons and atomic structures of elements like fluorine, phosphorus, calcium, and others.

Valence Electrons Worksheet with questions on valence electrons and atomic structures for various elements.

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1. a. Fluorine: 7
b. Phosphorus: 5
c. Calcium: 2
d. Iron: 2 (commonly considered for bonding, though it has variable valence)
e. Lithium: 1
f. Zinc: 2
g. Carbon: 4
h. Iodine: 7

2. a. Silicon: Protons(p) 14, Neutrons(n) 14 (for most common isotope Si-28)
b. Potassium: Protons(p) 19, Neutrons(n) 20 (for most common isotope K-39)
c. Sulfur: Protons(p) 16, Neutrons(n) 16 (for most common isotope S-32)
d. Beryllium: Protons(p) 4, Neutrons(n) 5 (for most common isotope Be-9)
e. Argon: Protons(p) 18, Neutrons(n) 22 (for most common isotope Ar-40)
f. Nitrogen: Protons(p) 7, Neutrons(n) 7 (for most common isotope N-14)

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