What is a magnet made of? Why attract iron?

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Magnets are one of the wonders of nature. What makes a magnet can be explained in two ways.

First, natural magnets

We are very familiar with natural magnets, if you are not familiar with the radio, TV, speakers to vandalize.
Now the question is, how are natural magnets made?
Before we know it, we need to know something about ferromagnetic matter.
So what is ferromagnetic matter?
No, ferromagnetic substances are substances that have odd electrons. We generally know that an atom of an element cannot have more than two electrons in a cell, but it can have one electron, which is called odd electron state. The higher the number of odd electrons, the more ferromagnetic it will be, such as manganese (5 odd electrons), iron (4 odd electrons), cobalt (3 odd electrons), nickel (2 odd electrons), etc.

Again, we know that when a charge moves a particle, a magnetic field is created because of it. The electrons revolve around the endless nucleus, so that one cell after another is considered a current loop, which is why a magnetic field exists. If one cell has two electrons then their spin or rotation is counterclockwise, if the spin of one electron is clockwise then the spin of the other will be counterclockwise. In such a case the magnetic field created by the electron is canceled, but if there are odd electrons then there is no chance of cancellation. From this it is understood that there is a magnetic field in such substances. Clearly ferromagnetic materials are needed to make magnets. However, the same is true of ions, because ions are formed by the elimination of one or more electrons, so it is very normal to have odd electrons.

The earth is constantly revolving around its own axis, along with all the matter in or above the earth. The observed results of which are the Earth's own magnetic field. A heated core is present inside the earth,
Where all matter is in a liquid state, ferromagnetic substances are also in a liquid state, when during eruption, magma is emitted in the form of lava, then these charged ions or ferromagnetic substances are also emitted.