Question

Some metals corrode very readily. Metals from which groups might be used to provide a protective coating? Justify the answer

​

Answer 1

Sodium is one of the most chemically reactive metals; it can react explosively with air or water if not stored properly. Calcium is less reactive than sodium, but it is more reactive than most metals. In nature, sodium and calcium are always found in compounds, and never as elements.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Cadmium, nickel, chromium, and silver are sometimes used as protective platings. Metals have a wide range of corrosion resistance. The most active metals (i.e., those that tend to lose electrons easily)--such as magnesium and aluminum--corrode easily and are listed at the top of Table 2-1.