The chemical element with the symbol 'Ag' is silver. Silver is a precious metal known for its high electrical conductivity, thermal conductivity, and reflectivity, making it valuable in various industrial applications, jewelry, and currency. It has an atomic number of 47 and is often found in nature in its pure form or in ores alongside other metals. In addition to its physical properties, silver has been used therapeutically due to its antimicrobial effects. Its historical significance extends back to ancient civilizations, where it was used for ornamental and practical purposes, and continues to hold economic importance in modern times.