Conductors and Insulators. Metals are good conductors (both of heat and electricity) because at least one electron per atom is free: i.e., it is not tied to any particular atom, but is, instead, able to move freely throughout the metal.
Chelation therapy supposedly removes mercury from the body, which chelation supporters say cures autism â but there's no evidence of a link between mercury exposure and autism.In addition, chelation therapy can be associated with serious side effects, including potentially deadly liver and kidney damage.helation therapy supposedly removes mercury from the body, which chelation supporters say cures autism â but there's no evidence of a link between mercury exposure and autism.
Chelation therapy is used in cases of acute lead poisoning, [unreliable medical source?] severe poisoning, and encephalopathy, and is considered for people with blood lead levels above 25 Âµg/dL. While the use of chelation for people with symptoms of lead poisoning is widely supported, use in asymptomatic people with high blood lead levels is more controversial.