What property do all elements in the same column of the Periodic Table as boron have in common?

All elements in the same column of the periodic table as boron (Group 13) have the same number of valence electrons. Boron is in Group 13, meaning it has 3 valence electrons. All elements in Group 13 have 3 valence electrons. This similar valence electron configuration leads to similar chemical properties. For example, they often form compounds with a +3 oxidation state.