polonium properties – a quoi sert le polonium
Polonium Po
Polonium Properties Polonium is a Block P, Group 16, Period 6 element, The number of electrons in each of polonium’s shells is 2, 8, 18, 32, 18, 6 and its electron configuration is [Xe]6s 2 4f 14 5d 10 6p 4 ,
Each allotrope has different physical properties, For more information on the Visual Elements image see the Uses and properties section below, Move to Bismuth , Move to Astatine > Polonium Discovery date 1898 Discovered by: Marie Curie Origin of the name: Polonium is named after Poland, the native country of Marie Curie, who first isolated the element, Allotropes: α-Po, β-Po Po Polonium 84
Polonium
· Polonium is part of the elements called metalloids or semi- metals These types of elements have intermediate properties between metals and non-metals Regarding its electrical conductivity this type of materials to which polonium belongs are semiconductors The state of polonium in its natural form is solid not magnetic
· Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth,
Electron Affinity : 183,3 kJ/mol
What is Polonium
Properties of Polonium, Symbol, Po, Atomic Number, 84, Electronic Configuration [Xe] 6s²4f¹⁴5d¹⁰6p⁴ , Atomic Mass, 209 u, Density, 9,4 g/cm³, Boiling point, 962⁰C, Melting point, 254⁰C, Group, 16, Period, 6, Block, p block, Isotopes of Polonium, ²⁰⁹Po, ²¹⁰Po, Certain Facts About Polonium, Its chemical property is similar to bismuth and tellurium, Polonium is the
Polonium propriétés chimiques effets sur la santé et l
polonium properties
PHYSICAL PROPERTIES OP POLONIUM Introduction Polonium atomic numlDer 84 is a naturally occurring radioactive element discovered in 1898 by Pierre and Marie Curie while seeking the cause of radioactivity in pitchblende It is a member of the uranium series of radioactive elements and is known as radium P It is formed from radium E by the
Uses Of Polonium And Atomic Properties With
Polonium Po
Propriétés physiques, Le polonium est un métal mou, coloré en gris-argent, devenant rouge ou jaune en couches très minces, Deux variétés cristallines ont été identifiées aux rayons X, La forme α, stable à la température ordinaire, est cubique : densité 9,196 à 36 0 C, rayon atomique 0,169 nm, Vers 36 0 C, apparaît la forme β, de structure
Physical and Chemical properties of Polonium Po
Polonium Po
Polonium is a radioactive, extremely rare semi-metal, It is reactive, silvery-gray, it dissolves in dilute acids, but it is only slightly soluble in alkalis, it is fairly volatile: about half of a sample of it will evaporate within 3 days unless it is kept in a sealed container, Applications Polonium was once used in textile mills to eliminate static charges and by the manufacturers of photographic plates in brushes to remove th…
· Oxidation States of Polonium: Chemical state The oxidation state, sometimes referred to as an oxidation number, describes the degree of oxidation of an element’s atom in a chemical compound, Standard State of Polonium: In chemistry, the standard state of a substance is a reference point that is used to calculate its properties under various conditions,
Polonium – Po Chemical properties of polonium – Health effects of polonium – Environmental effects of polonium, Atomic number, 84, Atomic mass 210 g,mol-1, Electronegativity according to Pauling, 2,0, Density, 9,51 g,cm-3 at 20°C, Melting point, 254 °C, Boiling point, 962 °C, Vanderwaals radius, 0,164 nm, Ionic radius, 0,102 nm +4 Isotopes, 12, Electronic shell [ Xe ] 4f 14 5d 10 6s 2
Polonium, Physical and Chemical Properties
En outre le polonium 210 est soluble et est distribué par le corps à chaque tissu et cellule dans des niveaux beaucoup plus élevés que celui du radon résidentiel La preuve est qu’il peut être trouver dans le sang et l’urine des fumeurs La circulation du polonium 210 cause des dommages génétiques et la mort provenant de maladies réminiscente des pionniers de la radiologie: cancer de foie ulcère d’estomac, …
The discovery of polonium in uranium ores was possible only because of its radioactivity, The equilibrium concentration of 210 Po from uranium ores is 7,4 × 10 −11 g 210 Po/g 238 U, Today, all isotopes between mass numbers 193 and 218 are known, The longest-lived isotope is 209 Po t1/2 = 102 years,
Physical properties and crystal structure of polonium
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POLONIUM, Propriétés physiques
Polonium
Polonium: Symbol: Po: Atomic Number: 84: Atomic Weight: 210: Density: 9320 Kg/M 3 Convert? Color: Silver: Melting point: 254 °C Convert? Boiling point: 962 °C Convert? State: Solid at room temperature Isotopes: Isotopes of Polonium Po Compounds: Compounds of Polonium Po Half life period: Half life period of Polonium Po Category: Metalloid
Polonium: Electron configuration