Radon: Difference between revisions

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Radon

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Noble gas:

Hazard:

Radioactive

Radon is a chemical element, having the chemical symbol Rn. Its atomic number (the number of protons) is 86. It has a standard atomic weight of 222 g•mol⁻¹ and is a solid in its elemental form.

Radon is a monatomic noble gas. At a pressure of 101.325 kPa, it has a boiling point of −71 °C and a melting point of −61.7 °C.

Revision as of 18:26, 2 May 2011 (view source) imported>Milton Beychok m (Replaced the info box and edited the lede somewhat) ← Older edit		Latest revision as of 14:06, 8 March 2016 (view source) imported>Howard J. Wilk (Made consistent with other noble gases.)
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	'''Radon''' is a [[Chemical elements\|chemical element]], having the [[chemical symbol]] Rn. Its [[atomic number]] (the number of [[proton]]s) is 86. It has a [[Atomic mass#Standard atomic weights of the elements\|standard atomic weight]] of 222 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form.		'''Radon''' is a [[Chemical elements\|chemical element]], having the [[chemical symbol]] Rn. Its [[atomic number]] (the number of [[proton]]s) is 86. It has a [[Atomic mass#Standard atomic weights of the elements\|standard atomic weight]] of 222 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form.

	Radon is ~~considered~~ a ~~member of the "Noble~~ gas ~~" class of elements~~. At a [[pressure]] of 101.325 k[[Pascal (unit)\|Pa]], it has a [[boiling point]] of  −71 °[[Celsius (unit)\|C]] and a [[melting point]] of  −61.7 °C.		Radon is a monatomic noble gas. At a [[pressure]] of 101.325 k[[Pascal (unit)\|Pa]], it has a [[boiling point]] of  −71 °[[Celsius (unit)\|C]] and a [[melting point]] of  −61.7 °C.