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Radon Element in Periodic Table | Atomic Number Atomic Mass


Radon Element:

Radon is an inert gas at standard conditions of temperature and pressure. It is an element with zero valence electrons and is included in the 18th Group of Periodic Table. As the atomic structure of Radon has orbitals with completely filled electrons to their maximum accommodating capacity, the atom has no spare electrons to participate in formation of bonds with other elements. Hence, the reactivity of radon is least and the gas called an inert or a noble gas. Rn is a colourless, odourless and tasteless gas under standard STP. Its melting point is -71 °C and boils at -61.7 °C. Rn has a very short half-life and its most stable isotope 222Rn has a half-life span of 3.8 days. 222Rn itself is a decay product of radium, 226Ra.

Radon is considered as perilous to human health. Inhalation of radon gas in high concentrations is found to have caused lung cancer even in non-smokers.

Uses Of Radon Element:

Radon is used in treatment of autoimmune diseases like arthritis by the method of radiation hormesis in which patient is exposed to radon for a clinically pre-decided length of time. In US and Europe, radon-induced water spas are used extensively by customers with the hope that they get energized or invigorated. The radioactive and polonium particles which are decay product of radon are used in radiation therapy of cancer


Radon Element Information:

Discovery year:1899

Discovered by:Ernest Rutherford and Robert B. Owens

Atomic number: 86

Relative atomic mass: [222]  

Electron configuration: [Xe] 4f14 5d10 6s2 6p6

Block: p-block

Other elements in the same block:

Boron, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Aluminium, Silicon, Phosphorus, Sulfur, Chlorine, Argon, Gallium, Germanium, Arsenic, Selenium, Bromine, Krypton, Indium, Tin, Antimony, Tellurium, Iodine, Xenon, Thallium, Lead, Bismuth, Polonium, Astatine, Nihonium, Flerovium, Moscovium, Livermorium, Tennessine and Oganesson are the same block elements.

Period: period 6

Other elements in the same period:

Caesium, Barium, LanthanumCerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Hafnium, Tantalum, Tungsten, Rhenium, Osmium, Iridium, Platinum, Gold, Mercury, Thallium, Lead, Bismuth, Polonium and Astatine are the elements in the same period.

Group: group 18 (noble gases)

Other elements in the same group:

Helium, Neon, Argon, Krypton, Xenon and Oganesson are the same group elements.

Other elements in the same orbital:

Thallium, Lead, Bismuth, Polonium and Astatine are the elements in the same orbital.

Allotropes: none

Key isotopes: 211Rn, 220Rn, 222Rn 

Melting point: −71°C, −96°F, 202 K 

Boiling point: −61.7°C, −79.1°F, 211.5 K 

Element category:   noble gas

Density (g cm−3): 0.009074

CAS number: 10043-92-2  

Color: colorless gas

You can know detailed information for each element,

Hydrogen, HeliumLithiumBerylliumBoronCarbonNitrogenOxygenFluorine,  Neon , SodiumMagnesiumAluminiumSiliconPhosphorusSulfurChlorineArgon, PotassiumCalciumScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincGalliumGermaniumArsenicSeleniumBromine, Krypton,  Rubidium, StrontiumYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumIndiumTinAntimonyTelluriumIodine, Xenon,  Caesium, BariumLanthanum,  CeriumPraseodymiumNeodymiumPromethiumSamariumEuropiumGadoliniumTerbiumDysprosiumHolmiumErbiumThuliumYtterbiumLutetiumHafniumTantalumTungstenRheniumOsmiumIridiumPlatinumGoldMercuryThalliumLeadBismuthPoloniumAstatine, Radon,  Francium, RadiumActiniumThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobeliumLawrenciumRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumNihoniumFleroviumMoscoviumLivermoriumTennessine, Oganesson.

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