What is the thinnest thing in the world?

As an AI language model, I do not have current information about the "thinnest thing in the world" as it could frequently change. However, researchers have developed a material called graphene, which is believed to be the thinnest material on earth. It is only one atom thick and is made of carbon atoms arranged in a hexagonal pattern. Graphene has unique properties such as high tensile strength, high electrical conductivity, and thermal conductivity, making it valuable for various industrial applications, including electronics, energy, and manufacturing. Its thickness is around 0.345 which is the thickness of just one carbon atom.