weight is 107.8682(2) g/ mol . [ 8 ] [ 9 ] Twenty-eight radioisotopes have been characterized, the most stable being 105 Ag with a half-life of 41.29 days, 111 Ag with a half-life of 7.45 days, and 112 Ag with a half-life of 3.13 hours. This element has numerous meta states , the