👉 Triones (symbol Ni) are a group of 12 elements that are widely distributed in nature, and they have been known for their unique properties. These elements were first discovered by Russian chemist Iosif Pinelis in 1935. In chemistry, the term "triones" is used to denote an element with six electrons (6d) and eight protons (8p). Triones are often referred to as "superheavy" because of their high atomic
