0
When metal corrodes, it forms an ionic bond with some corrosive nonmetal such as oxygen or sulfur, and once it forms such a bond, its valence electrons become tremendously less mobile, since they are caught by the nonmetal. The high electrical conductivity of metal depends upon the mobility of the valance electrons.
Still curious? Ask our experts.
Chat with our AI personalities
Beau
Rafa
CoachCorrosion forms a layer of non-conductive material on the surface of the metal, which interferes with the flow of electrons and decreases conductivity. This layer acts as a barrier that hinders the movement of electric charge through the metal, leading to a decrease in conductivity.
Add your answer:
Earn +20 pts
How does the presence of di water affect the corrosion of metal surfaces?
The presence of deionized (DI) water can reduce the corrosion of metal surfaces because it lacks ions that can accelerate the corrosion process. DI water has a lower conductivity, which means it is less likely to promote the flow of electrons that cause metal to corrode.
Characteristics of copper?
Copper is a malleable and ductile metal with high thermal and electrical conductivity. It has a reddish-orange color, resists corrosion, and is widely used in electrical wiring, plumbing, and industrial applications. Copper is also an essential trace mineral for human health, playing roles in enzyme activity, neurotransmitter synthesis, and antioxidant defense.
Does the presence of salt accelerate the process of rusting?
Yes, the presence of salt can accelerate the process of rusting by increasing the conductivity of water, which speeds up the corrosion of metal.
What are the different colors of metals and how do they affect their properties?
Metals can have a variety of colors, including silver, gold, copper, and bronze. The color of a metal is determined by its chemical composition and how it interacts with light. Different colors can indicate different properties of the metal, such as its conductivity, corrosion resistance, and strength. For example, copper is known for its reddish-brown color and high conductivity, while gold is prized for its yellow color and resistance to corrosion.
What are the properties of aliminium?
Aluminium is a lightweight metal with a low density, high corrosion resistance, and good conductivity. It is non-magnetic, non-toxic, and can be easily recycled.
