Gadolinium

Gadolinium is a chemical element with the symbol "Gd" and atomic number 64. It's a silvery-white metal that is part of the rare earth elements group. Gadolinium is known for its unique properties, such as high magnetic susceptibility, making it useful in various applications like magnetic resonance imaging (MRI) as a contrast agent. It enhances image quality by improving visibility of internal structures in the body. Additionally, gadolinium is used in electronics, nuclear reactors, and as an alloy to improve the strength of metals. However, it must be used carefully due to potential health concerns related to exposure.