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Hint: Metals: These are electropositive and contain less than or equal to three electrons in their valence shell while non-metals are electronegative and contain more than three electrons in their valence shell. The two metals that are used in maximum composition in mischmetal belong to the lanthanide group.
Complete step-by-step answer:
Mischmetal is an alloy consisting of ${ 95\% }$ of a lanthanoid metal, ${ 5\% }$ iron, and traces of sulfur, carbon, calcium, and aluminium. It is used in the production of alloy steels for plates and pipes and Mg-based alloy to produce bullets, shells, and lighter flint.
So, the two metals that are used in maximum composition in mischmetal are cerium and lanthanum.
Additional Information:
When a metal is mixed with another element, which may be a metal or a non-metal such that a new substance of homogeneous composition is obtained, the substance obtained is known as an alloy.
An alloy is thus a homogeneous mixture of two or more metals, or a metal and a nonmetal. The properties of an alloy are different from that of combining elements.
For example, when the iron is mixed with carbon, nickel, and chromium, stainless steel is obtained which is hard and does not rust.
Note: The possibility to make a mistake is that you may consider cerium and iron as the two main metals in mischmetal but lanthanum and cerium are the main components.
Complete step-by-step answer:
Mischmetal is an alloy consisting of ${ 95\% }$ of a lanthanoid metal, ${ 5\% }$ iron, and traces of sulfur, carbon, calcium, and aluminium. It is used in the production of alloy steels for plates and pipes and Mg-based alloy to produce bullets, shells, and lighter flint.
So, the two metals that are used in maximum composition in mischmetal are cerium and lanthanum.
Additional Information:
When a metal is mixed with another element, which may be a metal or a non-metal such that a new substance of homogeneous composition is obtained, the substance obtained is known as an alloy.
An alloy is thus a homogeneous mixture of two or more metals, or a metal and a nonmetal. The properties of an alloy are different from that of combining elements.
For example, when the iron is mixed with carbon, nickel, and chromium, stainless steel is obtained which is hard and does not rust.
Note: The possibility to make a mistake is that you may consider cerium and iron as the two main metals in mischmetal but lanthanum and cerium are the main components.
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