Magnetic Metals | Science

Kia Ora everyone today in science we were tasked to research metals, I chose the topic; magnetic metals and research it. 

Magnetism is created by the uneven distribution of electrons in atoms of certain metal elements. The irregular rotation and movement caused by this uneven distribution of electrons shift the charge inside the atom back and forth, creating magnetic dipoles.

Magnet

When magnetic dipoles align they create a magnetic domain, a localized magnetic area that has a north and a south pole.

In unmagnetized materials, magnetic domains face in different directions, canceling each other out. Whereas in magnetized materials, most of these domains are aligned, pointing in the same direction, which creates a magnetic field. The more domains that align together the stronger the magnetic force.

There are 3 types of magnet, they're Permanent Magnets, Temporary Magnets, and Electromagnets.

Permanent Magnets - Permanent magnets produce a magnetic field due to their internal structure. They do not lose their magnetism easily.

Temporary Magnets - Temporary magnets only retain their magnetic properties under certain conditions. When these conditions are no longer present, they lose their magnetic field. 

Electromagnet - Electromagnets are magnets that produce magnrtic fields when an electric current passes through them. They're are used in many products, like motors, generators, relays, headphones, and more, all use electromagnets. 

Neodymium

The strongest magnetic metal in the world is Neodymium. According to Wikipedia Neodymium is a chemical element with the symbol Nd and atomic number 60. Neodymium belongs to the lanthanide series and is a rare-earth element. It is a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.