Radon

Ang radon mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Rn ug kaiphan nga atomik 86. Ang radon mao ang gas nga halangdon.

Radon
86Rn
Xe ↑ Rn ↓ Uuo Periodic table astatine ← radon → francium
Panagway
colorless gas Payl:Radon.jpg
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	radon, Rn, 86
Paglitok	/ˈreɪdɒn/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-don]]
Kategoriyang elemento	gas nga halangdon
Group, period, block	18, 6, p
Gibug-aton sa atomo	(222)
Kontorno sa elektron	[Xe] 4f14 5d10 6s2 6p6 2, 8, 18, 32, 18, 8
History
Pagkadiskobre	Friedrich Ernst Dorn (1898)
First isolation	William Ramsay and Robert Whytlaw-Gray (1910)
Physical properties
Phase	gas
Density	(0 °C, 101.325 kPa) 9.73 g/L
Liquid density at b.p.	4.4 g·cm−3
Melting point	202.0 K, −71.15 °C, −96.07 °F
Boiling point	211.3 K, −61.85 °C, −79.1 °F
Critical point	377 K, 6.28 MPa
Heat of fusion	3.247 kJ·mol−1
Heat of vaporization	18.10 kJ·mol−1
Molar heat capacity	5R/2 = 20.786 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 110 121 134 152 176 211
Atomic properties
Oxidation states	6, 2, 0
Electronegativity	2.2 (Pauling scale)
Ionization energies	1st: 1037 kJ·mol−1
Covalent radius	150 pm
Van der Waals radius	220 pm
Miscellanea
Crystal structure	face-centered cubic
Magnetic ordering	non-magnetic
Thermal conductivity	3.61 m W·m−1·K−1
CAS registry number	10043-92-2
Most stable isotopes
Main article: Isotopes of radon
iso NA half-life DM DE (MeV) DP 210Rn syn 2.4 h α 6.404 206Po 211Rn syn 14.6 h ε 2.892 211At α 5.965 207Po 222Rn trace 3.8235 d α 5.590 218Po 224Rn syn 1.8 h β− 0.8 224Fr
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