Which element is likely more reactive, and why? these models show the electron structures of two different nonmetal elements. element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons element is more reactive because it does not have a full valence shell, so it will attract electrons. element 1 element 2