An infographic detailing Technetium, a radioactive metal, showing its atomic number 43, discovery in 1937, medical and industrial applications.

Technetium (Tc). Properties: Atomic number: 43 Silvery-gray metal Radioactive, with no stable isotopes Behavior resembles rhenium and manganese Discovered in 1937 Applications: Medicine: Technetium-99m is a key isotope in nuclear medicine. Used in more than 20 million diagnostic procedures globally each year, it emits gamma rays that help produce clear images of organs (heart, brain, bones) through SPECT scans. Industry: Used as a tracer in non-destructive material testing (radiography) to check for faults in structures and parts. Research: It helps scientists understand transition metal chemistry and radioactive element synthesis. Why is it important or unusual? It was the first element to be produced artificially, marking a milestone in chemistry. Its radioactivity allows unique imaging and tracing uses. Technetium-99m’s short half-life (6 hours) makes it ideal for medical scans—minimizing radiation exposure while maximizing diagnostic clarity. Infographic Structure (for 1st/2nd-year students): Section 1: Location on Periodic Table, properties (color, radioactivity, atomic number) Section 2: Fun Fact (first artificially created element) Section 3: Medical Applications (with icons for heart, bones, etc.) Section 4: Industry Uses (construction or engineering icons) Section 5: Why Important (brief bullet points: artificial, radioactivity, medical imaging) https://www.reddit.com/r/Infographics/comments/18g5hb3/a_chemistry_infographic_i_designed_showing_the/ See more