Multiple Choice
Consider the phase diagram for the Cr–V alloy. At 1800℃, starting with pure chromium, what phase changes will occur as the percentage of vanadium is gradually increased until you reach pure vanadium?
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24. Transition Metals and Coordination Compounds
Atomic Radius & Density of Transition Metals
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Which of the following metals is not ferromagnetic?
A
Fe
B
Mn
C
Co
D
Ni
E
All of these are ferromagnetic.
Verified step by step guidance1
Understand the concept of ferromagnetism: Ferromagnetism is a phenomenon where certain materials, like iron, cobalt, and nickel, can form permanent magnets or are attracted to magnets. This is due to the alignment of magnetic moments in the material.
Identify the common ferromagnetic elements: The most common ferromagnetic elements are iron (Fe), cobalt (Co), and nickel (Ni). These elements have unpaired electrons that align in a way that enhances their magnetic properties.
Consider the properties of manganese (Mn): Manganese is not typically ferromagnetic. It has a different electron configuration that does not support the same alignment of magnetic moments as Fe, Co, and Ni.
Evaluate the options: Given the options Fe, Mn, Co, and Ni, and knowing that Fe, Co, and Ni are ferromagnetic, determine which one does not fit the pattern.
Conclude based on the information: Since Mn is not ferromagnetic, it is the metal that does not belong to the group of ferromagnetic metals listed in the options.
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