Column A

Question

1.
Potassium (K) a metal in Group 1A
2.
Phosphorus (P) a nonmetal in Group 5A
3.
Sulfur (S) a nonmetal in Group 6A
4.
Magnesium (Mg) a metal in Group 2A.
5.
Chlorine (Cl) a nonmetal in Group 7A.
6.
Aluminum (Al) a metal in Group 3A.

Column B
a.It will lose 3 valence electrons.
b.It will gain 3 electrons to fill its outer shell.
c.It will lose 1 valence electron.
d.It will gain 1 electron to fill its outer shell.
e.It will lose 2 valence electrons.
f.It will gain 2 electrons to fill its outer shell.

Answer 1

Column A Column B
1. Potassium (K) a metal in Group 1A - c. It will lose 1 valence electron.
2. Phosphorus (P) a nonmetal in Group 5A - f. It will gain 2 electrons to fill its outer shell.
3. Sulfur (S) a nonmetal in Group 6A - e. It will lose 2 valence electrons.
4. Magnesium (Mg) a metal in Group 2A - c. It will lose 1 valence electron.
5. Chlorine (Cl) a nonmetal in Group 7A - d. It will gain 1 electron to fill its outer shell.
6. Aluminum (Al) a metal in Group 3A - b. It will gain 3 electrons to fill its outer shell.