👉 Rhenium is a rare element in the periodic table that has an atomic number of 48. It was first synthesized in 1935 by the German chemist Fritz Hering. Rhenium, also known as rhodium, is a transition metal with the chemical formula Ru. This element is widely used in various industries and has applications in electronics, medical devices, and catalytic processes. Rheniums are often referred to as "rhenium" because of its