Question

which metal would you expect to lose its electrons more easily? reactivity series of metals lithium rubidium potassium barium calcium sodium magnesium aluminum manganese zinc chromium iron cobalt nickel tin lead hydrogen copper silver mercury platinum gold (with an arrow labeled increasing reactivity on the left) options: aluminum, calcium, copper, nickel

Explanation:

In the reactivity series of metals, metals higher up are more reactive and lose electrons more easily. Among the options (Aluminum, Calcium, Copper, Nickel), Calcium is positioned higher in the reactivity series (above Aluminum, Nickel, and Copper) as seen in the given series (Calcium is above Aluminum, and Aluminum is above Nickel, which is above Copper). So Calcium loses electrons more easily.

Answer:

B. Calcium