bárium

Barium is a chemical element with the symbol Ba and atomic number 56. It is a soft, silvery alkaline earth metal that is never found in its pure form due to its high reactivity. Barium is the fifth element in Group 2, or the alkaline earth metals group, of the periodic table. It is similar to calcium but is more reactive.

Barium is primarily obtained from the mineral barite, which is the most common source of barium. It is also found in other minerals such as witherite and anglesite. The most common commercial compound of barium is barium sulfate, which is used in the manufacture of paper and as a filler in paints.

Barium has several important applications. It is used in the production of X-ray imaging plates and screens due to its ability to emit light when exposed to X-rays. It is also used in the production of glass and ceramics, as well as in the manufacture of certain types of steel. Barium compounds are used in the production of fireworks, as they produce a green color when burned.

Barium is not essential for human health, but it can be found in small amounts in the body. It is primarily excreted through the kidneys and can accumulate in bones and soft tissues over time. High levels of barium can be toxic and can cause symptoms such as abdominal pain, nausea, and vomiting. In severe cases, it can lead to kidney damage and even death.