Periodic
Table
|
Radon
|
Symbol
|
Rn
|
|
Atomic
Number
|
86
|
Relative
Atomic
Mass
12C
=
12.0000
|
[
222
]
222.0176
3.823(4)
day
|
|
Significant
Atomic
Mass
|
220
220.0114
55.6(1)
second
Neutrons
134
|
|
Isotope
|
211
210.9906
14.6(2)
hour
|
|
Atomic
Radius
pm
|
145
|
First
Ionisation
Energy
kJ
mol
-1
|
1040
|
|
Ionization energy (eV)
|
10,7485
|
|
Electronegativity
|
-
|
Density
kg
m
-3
|
4400
[l.,
m.p.]
9.73
[g.,
273
K]
|
|
Molar
Volume
cm
3
|
50.5
[211
K]
|
Thermal
Conductivity
W
m
-1
K
-1
|
0.00364
[300
K]
(est.)
|
|
Melting
Point
K
|
202
|
|
Boiling
Point
K
|
211.4
|
|
Number
of
Isotopes
|
28
|
|
Inner/outer
Shells
|
|
|
Inner/outer
Orbitals
|
|
|
Filling
Orbital
|
|
Ground
State
Electron
Configuration
|
|
|
|
Ground
State
Electron
Configuration
with
free
Orbital
(n=
0)
|
|
|
|
Ground
State
Electron
Configuration
with
compressed
Orbitals
(n=
96)
|
|
|
|
|
Singularity
|
|
|
|
|
|
s
|
p
|
d
|
f
|
g
|
h
|
i
|
j
|
|
1
|
2
|
|
|
|
|
|
|
|
|
2
|
2
|
6
|
|
|
|
|
|
|
|
3
|
2
|
6
|
10
|
|
|
|
|
|
|
4
|
2
|
6
|
10
|
14
|
|
|
|
|
|
5
|
2
|
6
|
10
|
14
|
18
|
|
|
|
|
6
|
2
|
6
|
10
|
14
|
18
|
22
|
|
|
|
7
|
|
|
|
|
|
|
|
|
|
8
|
|
|
|
|
|
|
|
|
|
|
|
|
Term
Symbol
|
1S 0
|
|
Discovery
|
Discovered
by
F.E.
Dorn
(Halle,
Germany)
in
1900
|
|
Name
Derived
From
|
Named
after
radium
|
|
