What is arsenic?????????

Arsenic is AS - 33. It has 5 valence electrons, so ir readily bonds with some other elements. It is highly toxic. It has a few isotopes and allotrope. It was once used as a long term embalming material. If burned it produces Arsenic Dioxide, an extremely poisonous gas that smells like garlic. It would probably be a more brutal form of acne remover, and incredibly dangerous, but it would have killed the surface layer of skin, and likely cleaned it. It is also possible that it could have caused a severe reaction to the skin resulting in a serious rash, or the person(people) who used it might have inhaled some of the powder, causing them to get arsenic poisoning and at that point you probably wouldn't worry about acne. You can easily die from arsenic poisoning. PS: Arsenic is in cigarettes.