Silver

Ingestion: Do NOT induce vomiting. Call a physician or poison control center immediately. Give victim a glass of water a little at a time. Never give anything by mouth to an unconscious person. If vomiting occurs spontaneously, lower head below waist to prevent fluid from entering the lungs. (P331)
Wash thoroughly after handling. Do not take internally. Eye wash and safety equipment should be readily available. (P264)