Polonium is a chemical element with the symbol Po and atomic number 84, discovered in 1898 by Marie Skłodowska-Curie and Pierre Curie. A rare and highly radioactive metalloid,[1] polonium is chemically simila
have properties between those of metals and nonmetals. Important metalloids include boron, silicon, germanium, arsenic, antimony, and tellurium. Selenium, although less commonly included in themetalloidgroup, is included in this chapter.Poloniumandastatineare inconsistently includes in the metalloid group...
Polonium (pronunciation: peh-LOW-nee-em) [3] is a rare, highly radioactive metalloid, classified as a Chalcogen [5] and represented by the chemical symbol Po [1, 2]. It has more than 25 isotopes, out of which Polonium-208, Polonium-209, and Polonium-210 are relatively long-lived [4...
7 natural metalloid polonium isotopes with mass numbers 210-212, 214-216 and 218 are found as members of radioactive decay series of uranium, actinouranium and thorium. Polonium is a rare element; its crustal abundance is 2x10-15%. Native polonium is a soft metal with silver luster, ...
Polonium is a rare, silvery-gray, radioactive, low-melting metalloid. Polonium readily reacts with dilute acids, but only slightly with alkalis. All of its isotopes are radioactive. 210Po emits a blue glow, as the air around it is excited by the decay products. 1 gram of Po emits as ...