Question

Hello mates !!❤

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Why iron , cobalt and nickel are ferromagnetic in nature.
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Plzz give suitable reason otherwise reported.

Answer 1

HEY MATE =  ^_^

Here is the reason :::

Electrons have spin, a property that gives them a magnetic moment  it creates a magnetic field.

The spins of electrons in most atoms are paired up and so their magnetic effects are in effect cancelled out. a bit like having pairs of bar magnets stuck together.  Now, iron cobalt and nickel are what is known a "transition elements" this means that the differences between these elements are less than those of the main elements in the periodic table because it is only electrons in lower shells and not the main outer shell that are being added as they increase in atomic number (that is the number pf protons and electrons that they have).  The reason for this is complicated and beyond the detail possible in this short note.  one feature of this lower shell addition is that there are more unpaired electrons than in most other atoms.  This excess of unpaired electrons means that they have stronger residual magnetic moments and can line up "head to tail"  like little bar magnets and increase their magnetic field instead of neutralising it and stay there at room temperature. instead of randomising after they have been lined up by placing them in a magnetic field.  This makes them ferromagnetic.

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Answer 2

$\huge\bold \color {green}{Hello \: Friend \: !!}$


$\red {\bold {Here \: is \: your \: answer }}$


$\underline \bold {Question : Why \: iron , cobalt \: and \: nickel \: are \: ferromagnetic \: in \: nature?}$


↪Ferromagnetic means they are attracted to magnets and can be magnetised themselves.


↪ Iron, Nickel and Cobalt are ferromagnetic because iron, cobalt and nickel naturally form "magnetic domains", where a large group of atoms naturally align to each other to create an area with a net magnetic field.


↪ That is the reason, why Iron, Nickel and Cobalt are ferromagnetic in nature.


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