2025年2月1日 · 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 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.

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

Polonium is the 84th element in the periodic table and has a symbol of Po and atomic number of 84. It has an atomic weight of (209) and a mass number of 186. Polonium has eighty-four protons and one hundred two neutrons in its nucleus, and eighty-four electrons in six shells.

2023年10月13日 · 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 …

A radioactive element that is a member of the chalcogen family. It has the atomic symbol Po, atomic number 84, and the atomic weight of the isotope with the longest half-life (209Po) is 208.98. It decays by alpha-emission.

2017年3月11日 · Polonium (Po or Element 84) is one of the radioactive elements discovered by Marie and Pierre Curie. This rare element has no stable isotopes. It's found in uranium ores and cigarette smoke and also occurs as a decay product of heavier elements.

2024年9月1日 · Polonium element is in group 16 and period 6 of the Periodic table. Polonium is the p-block element and it belongs to chalcogens group. Click on above elements (in Periodic table) to see their information. Why is Polonium in Group 16?

Polonium is a chemical element of the periodic table with chemical symbol Po and atomic number 84 with an atomic weight of 209 u and is classed as post-transition metal and is part of group 16 (oxygen group). Polonium is solid at room temperature.

Polonium is a chemical element with symbol Po and atomic number 84, discovered in 1898 by Marie Curie and Pierre Curie. A rare and highly radioactive element with no stable isotopes, polonium is chemically similar to bismuth and tellurium, and it occurs in uranium ores.