Question

Lead is unaffected by water because___

Answer 1

Hint: To find the answer to this question one must be familiar with the fact that certain metals react with water, some react violently, some mildly while others do not react at all. Lead is less reactive metal as one can see from the reactivity series.

Complete answer: Lead is a chemical element with the symbol \[Pb\] . It has the atomic number \[82\] . It is a heavy metal which is denser than most common materials. Lead is a soft and malleable metal. It has a low melting point. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements.
Lead has a weak metallic character and shows amphoteric nature. Lead and its oxides react with acids and bases and tend to form covalent bonds. These compounds are usually found in \[ + 2\] oxidation state.
Lead is usually used in car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radiation protection and in some soldiers. It is often used to store corrosive liquids.
When a metal reacts with water they produce metal oxide and hydrogen gas. Metal oxides which are soluble in water dissolve in it further to form metal hydroxide. But it is not necessary that all metals react with water. Metal like Sodium reacts with water very violently.
When Lead comes in contact with water, instead of reacting with water Lead forms a protective oxide film. Since the surface of Lead is made up of a very thin layer of Lead oxide therefore it does not undergo reaction in normal conditions. Therefore remains affected.

Note:
Lead is toxic in humans and it affects the internal organs, causing food poisoning. It also affects the brain development in children. It is considered to be the oldest metal known to humans. Lead is present in various minerals in a minute quantity.