Polonium is a radioactive element that exists in two metallic allotropes. The alpha form is the only known example of a simple cubic crystal structure in a single atom basis at STP (space group Pm 3 m, no. 221). The unit cell has an edge length of 335.2 picometers; the …

polonium (Po), a radioactive, silvery-gray or black metallic element of the oxygen group (Group 16 [VIa] in the periodic table). The first element to be discovered by radiochemical analysis, polonium was discovered in 1898 by Pierre and Marie Curie, who were investigating the radioactivity of a certain pitchblende, a uranium ore.

Polonium has about 25 known radioactive isotopes. One of the most common and well-known polonium isotopes is polonium-210, which emits highly radioactive, positively charged particles called alpha particles. Once a victim has polonium-210 poisoning, the effects are likely to be fatal.

Mar 9, 2024 · Polonium is a rare and highly radioactive element with the symbol Po and atomic number 84. A metal or metalloid in the periodic table, it lies in the p-block, and is a member of group 16, the chalcogens. Its discovery in 1898 marked a …

Element Polonium (Po), Group 16, Atomic Number 84, p-block, Mass [209]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

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].

Polonium is a chemical element with symbol Po and atomic number 84. Classified as a metalloid, Polonium is a solid at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697. B. Cordero, V. Gómez, A.E. Platero-Prats, M. Revés, J. Echeverría, E. Cremades, F. Barragán, S. Alvarez, Dalton Trans. 2008, 21, 2832-2838.

Polonium atom is a radioactive metallic element discovered in 1898 by Marie Sklodowska Curie and named after her home country, Poland (Latin Polonia). It is a chalcogen and a metal atom.

Oct 13, 2023 · Polonium is a chemical element with an atomic number of 84 and is represented by the symbol ‘Po’ in the periodic table. It is silvery in appearance and belongs to the p-block of group 16 of the periodic table. Polonium is the heaviest element within the chalcogen family.

Polonium is a shiny silver metal. It exists in two allotropic forms, alpha and beta. The alpha form exists in a single atom arranged in a cubic crystal at standard temperature and pressure. While the beta form exists in a complex rhombohedral structure [3]. The atomic number of polonium is 84 and atomic mass is 209.