Technetium chemical symbol
technetium, chemical, element, metal, atom, transition, periodic, group, atomic, number, mass, density, melting, boiling, radioactive, isotope, compound, oxide, chloride, reaction, bonding, electron, valence, stability, conductivity, corrosion, alloy, crystal, catalyst, nuclear, medicine, tracer, industry, laboratory, material, extraction, refinement, environment, structure, strength, chemicalprocess, applications