The crew had already executed a go around after hearing a pop while cycling the gear, and orbited to troubleshoot the problem. Eventually the decision was made to land on runway 36. As the wheels touched down, the nose gear failed and the aircraft slid down the runway on its nose and main gear. As soon as it stopped the crew and passengers evacuated and emergency vehicles reached the scene. To the best of our knowledge no one was injured. Well done by the crew as well as the emergency workers who responded to the incident!