Select the element whose valence electrons experience a greater effective nuclear charge. Na OS le 9: Why do the valence electrons of the selected element experience a greater effective nuclear charge? 1: The element has fewer core electrons and more protons than the other element. The element has more core electrons, but fewer protons than the other element. The element has more protons, but the same number of core electrons as the other element. The element has more protons and more core electrons than the other element. THIS