What materials will be attracted by the magnet

The scientific name of magnet is magnet, and magnet is a kind of magnet.
The magnet is made by pressing ferric oxide powder with filler and binder. Some magnetites have strong magnetism and contain more Fe3O4, while others have weak magnetism and contain less Fe3O4. Matter is mostly composed of molecules, molecules are composed of atoms, and atoms are composed of nuclei and electrons. Inside an atom, electrons are constantly spinning on their own and orbiting the nucleus. Both of these movements of electrons create magnetism. But in most substances, the electrons move in different directions and are chaotic, and the magnetic effects cancel each other out. Therefore, most substances are not magnetic under normal conditions.
Ferromagnetic substances such as iron, cobalt, nickel, or ferrite are different. The electron spins inside it can be spontaneously arranged in a small range to form a spontaneous magnetization region, which is called a magnetic domain. After the ferromagnetic material is magnetized, the internal magnetic domains are arranged neatly and in the same direction, which strengthens the magnetism and constitutes a magnet. The iron-absorbing process of the magnet is the magnetization process of the iron block. The magnetized iron block and the different polarities of the magnet generate attractive force, and the iron block is firmly "sticked" to the magnet. We say that the magnet is magnetic.