The Ni/Ni²⁺ electrode has a standard electrode potential of E° = -0.23 V. How does the relative potential energy of an electron at the Ni/Ni²⁺ electrode compare to the potential energy of an electron at the standard hydrogen electrode?
A) An electron at the Ni/Ni²⁺ electrode has the same potential energy as an electron at the standard hydrogen electrode.
B) An electron at the Ni/Ni²⁺ electrode has a higher potential energy than an electron at the standard hydrogen electrode.
C) An electron at the Ni/Ni²⁺ electrode has a lower potential energy than an electron at the standard hydrogen electrode.
D) Nothing can be concluded about the relative potential energy of an electron at the standard electrode potential.