Question

(I) How does electrical conductivity and melting point of a metal change when it is converted to its alloy by mixing a small amount of an element in it? 

Hint:

Alloys are often used to improve the properties of metals for specific applications, such as increased strength or better corrosion resistance, which cannot be achieved by pure metals alone.

Answer 1

When a metal is converted to an alloy by mixing a small amount of a different element, several physical properties of the metal change. For example:

- F₂Electrical ConductivityF₂: The electrical conductivity of a metal typically decreases when it is turned into an alloy. This happens because the atoms of the added element create irregularities in the atomic structure, which disrupt the free flow of electrons necessary for conduction.
- F₂Melting PointF₂: The melting point of an alloy often differs from the melting points of the constituent metals. Typically, alloys have a F₂lower melting pointF₂ than their pure components, especially if the alloy formation creates a new crystalline structure that requires less energy to break.