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The element thallium is a poisonous metal that can cause a person's tongue to turn black or discolored when ingested in toxic amounts. Thallium poisoning can lead to serious health effects, including damage to the nervous system and other organs.
One example of a poison that can turn the tongue black is bismuth subsalicylate, commonly found in medications like Pepto-Bismol. When ingested in large amounts, it can react with sulfur compounds in saliva to create a black-colored compound.
It is Black/Brown.
No, coal is not an element. Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon, along with variable amounts of other elements like hydrogen, sulfur, oxygen, and nitrogen.
iodine is element 53
Black powder is a compound composed of potassium nitrate, sulfur, and charcoal. It is not an element because it is made up of multiple atoms of different elements chemically bonded together.