1) Atomic number 84 2) Chemical element 3) Element discovered in 1898 4) Element number 84 5) Element with the symbol Po 6) Metal 7) Metallic element
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1) Po
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https://www.crosswordclues.com/clue/polonium
Polonium is a chemical element with the 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. Applications of polonium are few. They include heaters in space probes, an...
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http://en.wikipedia.org/wiki/Polonium
• (n.) A supposed new element, a radioactive substance discovered by M. and MMe. Curie in pitchblende. It is closely related chemically to bismuth. It emits only alpha rays and is perhaps identical with radium F.
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a radioactive, silvery-gray or black metallic element of the oxygen family (Group VIa in the periodic table). The first element to be discovered by ... [6 related articles]
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(Po) A soft, gray, radioactive, metallic element of group VIA of the periodic table, discovered in 1898 by Marie Curie. It is found in trace amounts in uranium ores and may also be synthesized by neutron bombardment of bismuth. The commonest isotope,
210Po...
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<chemical> 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. ... Chemical name: Polonium ... (12 Dec 1998) ...
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(Po) (pә-lo´ne-әm) a chemical element, atomic number 84, atomic weight 210.
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Po·lo'ni·um noun [ New Latin So named after Poland, in Latin form
Polonia , one of the discoverers being a Pole.]
(Chemistry) A supposed new element, a radioactive substance discovered by M. and MMe. Curie in pitchblende. It is closely related chemically to bismuth. It emits only alpha ray...
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http://www.encyclo.co.uk/webster/P/119
(Po) Type: Term Pronunciation: pō-lō′nē-ŭm Definitions: 1. A radioactive element, atomic no. 84, isolated from pitchblende; the longest-lived isotope is 209Po (half-life 102 years); 210Po is radium F (half-life 138.38 days), the only readily accessible isotope.
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Polonium is a metal radioactive element with the symbol Po.
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Chemical element with atomic number 84
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[
n] - a radioactive metallic element that is similar to tellurium and bismuth
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A radioactive element that occurs in pitchblende and other uranium-containing ores.
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Polonium is a radioactive element. Symbol Po
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Po noun a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
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https://www.encyclo.co.uk/local/20974
Radioactive, metallic element, atomic number 84, relative atomic mass 210. Polonium occurs in nature in small amounts and was isolated from pitchblende. It is the element having the largest number of isotopes (27) and is 5,000 times as radioactive as radium, liberating considerable amounts of heat. It was the first element to have its radioactive p...
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