Nah you probably dont need to know this. Anything that needs to be known about this will be given in a passage on it (I have actually seen one passage regarding this, I thin it was AAMC but may have been TPR, anyways I didnt know anything about the activity series except the conceptual understanding and I got the passage completely right cause of passage info). You might have a better understanding/ be more comfortable with the material, but it certainly is low-yield. IMO just dont worry about it, so many better things out there to memorize (like the Capacitance equations)
