Fill in the Blank 2 points Elements in a family have similar chemical properties because they have same number of Valence electrons

Elements in a family have similar chemical properties because they have the same number of valence electrons. Valence electrons are the electrons in the outermost shell of an atom and are responsible for an element's chemical behavior. Elements in the same family or group on the periodic table have the same number of valence electrons, which results in similar chemical properties.