Copper is a metal that is quite unreactive when it comes to water and steam. This lack of reaction can be attributed to several factors associated with the properties of copper itself.
Firstly, copper has a very stable electron configuration. It has one of the highest standard electrode potentials of all the metals, which means it doesn’t easily lose electrons and thus does not readily participate in chemical reactions, particularly with substances like water or steam.
Secondly, when copper is exposed to water or steam, it doesn’t form a hydroxide like some other metals do. Instead, it tends to form a protective layer of copper oxide on its surface if it is exposed to oxygen. This oxide layer prevents further reaction with water or steam by acting as a barrier.
In summary, the unreactive nature of copper with water and steam is due to its stable electron configuration and the formation of a protective oxide layer, which prevents further interactions. This is why copper is often used in plumbing and electrical applications, as it remains intact even in environments that include moisture.