What causes a ferromagnetic material to become magnetic?
A.
unpaired protons
B.
paired quarks
C.
unpaired electrons
Answers
Answer:
Ferromagnetism is a phenomenon that occurs in some metals, most notably iron, cobalt and nickel, that causes the metal to become magnetic. The atoms in these metals have an unpaired electron, and when the metal is exposed to a sufficiently strong magnetic field, these electrons' spins line up parallel to each other.
Answer:
Option b) unpaired electrons
there are regions where the north and south poles of atoms are all lined up in the same direction. These regions are called magnetic domains. Generally, the magnetic domains point in different directions, so the material is still not magnetic. However, the material can be magnetized (made into a magnet) by placing it in a magnetic field. When this happens, all the magnetic domains line up, and the material becomes a magnet.
Materials that can be magnetized are called ferromagnetic materials. They include iron, cobalt,etc.