Hardens lead, used in flame retardants.
Antimony is a metalloid element located in period 5, group 15 of the periodic table. It has the chemical symbol Sb and atomic number 51. The electron configuration of Antimony is [Kr] 4d10 5s2 5p3, giving it 5 valence electron(s).
Explore Antimony in interactive 3D with the Soren Periodic Table. View Bohr model, quantum orbital model, nucleus inspector, and phase lab with temperature and pressure controls. Includes fun facts, real-world uses, and NCTB curriculum integration for Bangladeshi students.