Which of the following statement is true of the electrochemical series?

The electrochemical series is a list of metals and non-metals in order of their relative reactivity towards other substances in electrochemical reactions. The statement that is true of the electrochemical series is that electropositivity of metals decreases down the series. This means that the most electropositive metals (such as potassium and sodium) are found at the top of the series, while the least electropositive metals (such as gold and platinum) are found at the bottom. As you go down the series, the metals become less likely to lose electrons and form positive ions, which means that they become less reactive.