Match the following terms to the correct element.
Column A
1. Sulfur (S)
2. Sodium (Na)
3. Calcium (Ca)
4. Carbon (C)
Column B
A. 1 valence electron
B. 4th group
C. 6 valence electrons
D. 4th period
1. Sulfur (S) - C. 6 valence electrons
2. Sodium (Na) - A. 1 valence electron
3. Calcium (Ca) - D. 4th period
4. Carbon (C) - B. 4th group