TWO-DIMENSIONAL PARTICLE, CONDUCTIVE FILM, CONDUCTIVE PASTE, AND METHOD FOR PRODUCING TWO-DIMENSIONAL PARTICLE

A two-dimensional particle that includes: one or more layers, each of the one or more layers including a layer body represented by: MmXn, wherein M is at least one Group 3, 4, 5, 6, or 7 metal, X is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n but not more than 5, a modifier or terminal T on a surface of the layer body, T is at least one of a hydroxy group, a fluorine atom, a bromine atom, an oxygen atom, a sulfur atom, Se, Te, and a hydrogen atom, and M of the one or more layers is bonded to at least one of PO43- and SO42-; and a metal cation of metals in the third to fifth periods of the periodic table, and a content of Li is less than 0.002 mass %.