Looking at the same nonmetal group on the periodic table, how does the reactivity of an element in period 2 compare to the reactivity of an element in period 4? The period 2 element would be more reactive because the attractive force of protons is stronger when there are fewer neutrons interfering.
The period 2 element would be more reactive because the attractive force of protons is stronger when electrons are attracted to a closer electron shell.
The period 4 element would be more reactive because the attractive force of protons is stronger when there are more neutrons helping.
The period 4 element would be more reactive because the attractive force of protons is stronger when electrons are attracted to a farther electron shell.