Radó

Radó (Rn)

chemical element with the atomic number of 86
Atomic Number86
Atomic Weight222
Rhif màs193
Group18
Period6
Blockp
Proton86 p+
Niwtron107 n0
Electron86 e-
Animated Bohr model of Rn (Radó)

Nodwedd Ffisegol

Atomic Radius
molar volume
covalent radius
142 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
220 pm
density
0.009074 g/cm³

Nodwedd Gemegol

egni
proton affinity
electron affinity
ionization energy
10.7485 eV/particle
ionization energy of Rn (Radó)
enthalpy of vaporization
18.1 kJ/mol
enthalpy of fusion
standard enthalpy of formation
Electron
plisgyn yr electron2, 8, 18, 32, 18, 8
Bohr model: Rn (Radó)
valence electron8
Lewis structure: Rn (Radó)
trefn yr electronnau[Xe] 4f14 5d10 6s2 6p6
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p6
Enhanced Bohr model of Rn (Radó)
Orbital Diagram of Rn (Radó)
Cyflwr ocsidiad2, 6
Electronegatifedd
Electrophilicity Index
cyflwr sylfaenol mater
cyflwr materGas
gaseous state of matterMonoatomic
Boiling Point
211.45 K
Melting Point
202.15 K
critical pressure
6.28 MPa
critical temperature
377.15 K
triple point
appearance
lliw
Colorless
appearancecolorless gas, occasionally glows green or red in discharge tubes
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
0.0036 W/(m K)
thermal expansion
molar heat capacity
20.786 J/(mol K)
Specific Heat Capacity
0.094 J/(g⋅K)
heat capacity ratio5/3
electrical properties
type
dargludedd trydanol
Gwrthedd
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal Structure (FCC)
lattice constant
Lattice Angles
nodwedd mecanyddol deunyddiau
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryNoble gases, Noble gases
CAS GroupVIII
IUPAC GroupVIIIA
Glawe Number6
Mendeleev Number117
Pettifor Number6
Geochemical ClassU/Th decay series
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
35 ± 2 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
0.7
Neutron Mass Absorption
quantum number1S0
space group ()

Isotopes of Radon

Stable Isotopes0
Unstable Isotopes39
Natural Isotopes0

193Rn

Rhif màs193
neutron number107
relative atomic mass
193.009707973 ± 0.000026958 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.15 ± 0.27 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2006
parity-

decay modeintensity
α (α emission)100%

194Rn

Rhif màs194
neutron number108
relative atomic mass
194.006145636 ± 0.000017884 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
780 ± 160 us
spin0
nuclear quadrupole moment
0
dyddiad darganfod2006
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

195Rn

Rhif màs195
neutron number109
relative atomic mass
195.005421703 ± 0.000055487 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7 ± 3 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod2001
parity-

decay modeintensity
α (α emission)100%

196Rn

Rhif màs196
neutron number110
relative atomic mass
196.002120431 ± 0.000015087 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.7 ± 1.1 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1995
parity+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

197Rn

Rhif màs197
neutron number111
relative atomic mass
197.001621446 ± 0.000017383 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
54 ± 6 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1995
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

198Rn

Rhif màs198
neutron number112
relative atomic mass
197.998679197 ± 0.000014406 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
64.4 ± 1.6 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1984
parity+

decay modeintensity
α (α emission)93%
β+ (β+ decay; β+ = ϵ + e+)

199Rn

Rhif màs199
neutron number113
relative atomic mass
198.998325436 ± 0.000007833 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
590 ± 30 ms
spin3/2
nuclear quadrupole moment
dyddiad darganfod1980
parity-

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)

200Rn

Rhif màs200
neutron number114
relative atomic mass
199.995705335 ± 0.000006217 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.09 ± 0.16 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1971
parity+

decay modeintensity
α (α emission)92%
β+ (β+ decay; β+ = ϵ + e+)

201Rn

Rhif màs201
neutron number115
relative atomic mass
200.995590511 ± 0.000010865 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7 ± 0.4 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1967
parity-

decay modeintensity
α (α emission)
β+ (β+ decay; β+ = ϵ + e+)

202Rn

Rhif màs202
neutron number116
relative atomic mass
201.993263982 ± 0.000018808 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
9.7 ± 0.1 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1967
parity+

decay modeintensity
α (α emission)78%
β+ (β+ decay; β+ = ϵ + e+)

203Rn

Rhif màs203
neutron number117
relative atomic mass
202.993361155 ± 0.000006242 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
44.2 ± 1.6 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1967
parity-

decay modeintensity
α (α emission)66%
β+ (β+ decay; β+ = ϵ + e+)34%

204Rn

Rhif màs204
neutron number118
relative atomic mass
203.991443729 ± 0.000007991 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.242 ± 0.023 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1967
parity+

decay modeintensity
α (α emission)72.4%
β+ (β+ decay; β+ = ϵ + e+)

205Rn

Rhif màs205
neutron number119
relative atomic mass
204.991723228 ± 0.000005453 Da
g-factor
0.3192 ± 0.00064
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
170 ± 4 s
spin5/2
nuclear quadrupole moment
0.062 ± 0.006
dyddiad darganfod1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)75.4%
α (α emission)24.6%

206Rn

Rhif màs206
neutron number120
relative atomic mass
205.990195409 ± 0.000009223 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5.67 ± 0.17 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1954
parity+

decay modeintensity
α (α emission)62%
β+ (β+ decay; β+ = ϵ + e+)38%

207Rn

Rhif màs207
neutron number121
relative atomic mass
206.990730224 ± 0.00000509 Da
g-factor
0.32496 ± 0.00064
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
9.25 ± 0.17 m
spin5/2
nuclear quadrupole moment
0.22 ± 0.02
dyddiad darganfod1954
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)79%
α (α emission)21%

208Rn

Rhif màs208
neutron number122
relative atomic mass
207.989634513 ± 0.00001091 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
24.35 ± 0.14 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1955
parity+

decay modeintensity
α (α emission)62%
β+ (β+ decay; β+ = ϵ + e+)38%

209Rn

Rhif màs209
neutron number123
relative atomic mass
208.990401389 ± 0.000010692 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
28.8 ± 1 m
spin5/2
nuclear quadrupole moment
dyddiad darganfod1952
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)83%
α (α emission)17%

210Rn

Rhif màs210
neutron number124
relative atomic mass
209.989688862 ± 0.000004892 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.4 ± 0.1 h
spin0
nuclear quadrupole moment
0
dyddiad darganfod1952
parity+

decay modeintensity
α (α emission)96%
β+ (β+ decay; β+ = ϵ + e+)

211Rn

Rhif màs211
neutron number125
relative atomic mass
210.990600767 ± 0.000007314 Da
g-factor
1.1968 ± 0.0024
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
14.6 ± 0.2 h
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod1952
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)72.6%
α (α emission)27.4%

212Rn

Rhif màs212
neutron number126
relative atomic mass
211.990703946 ± 0.000003338 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
23.9 ± 1.2 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1950
parity+

decay modeintensity
α (α emission)100%

213Rn

Rhif màs213
neutron number127
relative atomic mass
212.993885147 ± 0.000003618 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
19.5 ± 0.1 ms
spin9/2
nuclear quadrupole moment
dyddiad darganfod1967
parity+

decay modeintensity
α (α emission)100%

214Rn

Rhif màs214
neutron number128
relative atomic mass
213.99536265 ± 0.000009862 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
259 ± 3 ns
spin0
nuclear quadrupole moment
0
dyddiad darganfod1970
parity+

decay modeintensity
α (α emission)100%

215Rn

Rhif màs215
neutron number129
relative atomic mass
214.998745037 ± 0.000006538 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
2.3 ± 0.1 us
spin9/2
nuclear quadrupole moment
dyddiad darganfod1952
parity+

decay modeintensity
α (α emission)100%

216Rn

Rhif màs216
neutron number130
relative atomic mass
216.000271942 ± 0.000006192 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
29 ± 4 us
spin0
nuclear quadrupole moment
0
dyddiad darganfod1949
parity+

decay modeintensity
α (α emission)100%

217Rn

Rhif màs217
neutron number131
relative atomic mass
217.003927632 ± 0.000004506 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
593 ± 38 us
spin9/2
nuclear quadrupole moment
dyddiad darganfod1949
parity+

decay modeintensity
α (α emission)100%

218Rn

Rhif màs218
neutron number132
relative atomic mass
218.005601123 ± 0.000002486 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
33.75 ± 0.15 ms
spin0
nuclear quadrupole moment
0
dyddiad darganfod1948
parity+

decay modeintensity
α (α emission)100%

219Rn

Rhif màs219
neutron number133
relative atomic mass
219.009478683 ± 0.000002254 Da
g-factor
-0.17596 ± 0.00048
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.96 ± 0.01 s
spin5/2
nuclear quadrupole moment
1.15 ± 0.12
dyddiad darganfod1903
parity+

decay modeintensity
α (α emission)100%

220Rn

Rhif màs220
neutron number134
relative atomic mass
220.011392443 ± 0.000001947 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
55.6 ± 0.1 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1900
parity+

decay modeintensity
α (α emission)100%
(double β decay)

221Rn

Rhif màs221
neutron number135
relative atomic mass
221.015535637 ± 0.000006134 Da
g-factor
-0.0057428571428571 ± 0.00017142857142857
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
25.7 ± 0.5 m
spin7/2
nuclear quadrupole moment
-0.47 ± 0.05
dyddiad darganfod1956
parity+

decay modeintensity
β (β decay)78%
α (α emission)22%

222Rn

Rhif màs222
neutron number136
relative atomic mass
222.017576017 ± 0.000002086 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
3.8215 ± 0.0002 d
spin0
nuclear quadrupole moment
0
dyddiad darganfod1899
parity+

decay modeintensity
α (α emission)100%

223Rn

Rhif màs223
neutron number137
relative atomic mass
223.021889283 ± 0.000008397 Da
g-factor
-0.22057142857143 ± 0.0022857142857143
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
24.3 ± 0.4 m
spin7/2
nuclear quadrupole moment
0.8 ± 0.08
dyddiad darganfod1964
parity+

decay modeintensity
β (β decay)100%
α (α emission)

224Rn

Rhif màs224
neutron number138
relative atomic mass
224.024095803 ± 0.000010536 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
107 ± 3 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1964
parity+

decay modeintensity
β (β decay)100%

225Rn

Rhif màs225
neutron number139
relative atomic mass
225.028485572 ± 0.000011958 Da
g-factor
-0.198 ± 0.0022857142857143
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.66 ± 0.04 m
spin7/2
nuclear quadrupole moment
0.84 ± 0.08
dyddiad darganfod1969
parity-

decay modeintensity
β (β decay)100%

226Rn

Rhif màs226
neutron number140
relative atomic mass
226.03086138 ± 0.000011247 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.4 ± 0.1 m
spin0
nuclear quadrupole moment
0
dyddiad darganfod1969
parity+

decay modeintensity
β (β decay)100%

227Rn

Rhif màs227
neutron number141
relative atomic mass
227.035304393 ± 0.000015127 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
20.2 ± 0.4 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1986
parity+

decay modeintensity
β (β decay)100%

228Rn

Rhif màs228
neutron number142
relative atomic mass
228.037835415 ± 0.000018977 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
65 ± 2 s
spin0
nuclear quadrupole moment
0
dyddiad darganfod1989
parity+

decay modeintensity
β (β decay)100%

229Rn

Rhif màs229
neutron number143
relative atomic mass
229.042257272 ± 0.000014 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
11.9 ± 1.3 s
spin5/2
nuclear quadrupole moment
dyddiad darganfod2009
parity+

decay modeintensity
β (β decay)100%

230Rn

Rhif màs230
neutron number144
relative atomic mass
230.045271 ± 0.000215 Da
g-factor
0
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin0
nuclear quadrupole moment
0
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)

231Rn

Rhif màs231
neutron number145
relative atomic mass
231.049973 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin1/2
nuclear quadrupole moment
0
dyddiad darganfod2010
parity+

decay modeintensity
β (β decay)
Radon water apparatus P1120815.JPG
Radon spectrum visible

hanes

darganfyddwr neu ddyfeisiwrFredrich Ernst Dorn
man darganfodGermany
dyddiad darganfod1898
geirdarddiadVariation of the name of another element, radium.
ynganiadRAY-don (Saesneg)

source

Abundance
Abundance in Earth's crust
0.0000000000004 mg/kg
natural abundance (cefnfor)
0.0000000000000006 mg/L
natural abundance (corff dynol)
natural abundance (Awyrfaen)
natural abundance (Haul)
Abundance in Universe
0 %

Nuclear Screening Constants

1s1.6659
2p4.562
2s22.5864
3d13.4027
3p23.7194
3s24.9149
4d38.0572
4f37.6688
4p36.6988
4s35.85
5d58.647
5p54.029
5s52.107
6p69.9242
6s67.676