What Elements Can Kill You

Polonium is One Nasty Element. Polonium isn’t much worse than any other radioactive element, until it gets inside your body!. … Mercury is Deadly and Omnipresent. … Arsenic is a Classic Poison. … Francium is Dangerously Reactive. … Lead is the Poison We Live With. … Plutonium is a Radioactive Heavy Metal.

What elements are dangerous to humans?

Conversely, there are a number of elements that are toxic to the human body, interfere with its functioning and undermine health—such as mercury, lead, cadmium, aluminum, and arsenic. These toxic metals have no known physiological functions.

What is the scariest element in the world?

Plutonium may be the most feared and fearsome substance in the entire periodic table. It’s best known as the main ingredient of atomic bombs like the infamous Fat Man, dropped on Nagasaki on 9 August 1945, which killed some 70,000 people.