|
Pangucapan | (RAY-don) |
---|
Wujud | Colorless gas |
---|
nomer massa | 222 (most stable isotope) |
---|
|
|
Atomic number (Z) | 86 |
---|
Group | group 18 (noble gases) |
---|
Period | period 6 |
---|
Blok | p-block |
---|
Konfigurasi èlèktron | [Xe] 4f14 5d10 6s2 6p6 |
---|
Electrons per shell | 2, 8, 18, 32, 18, 8 |
---|
|
Phase at STP | gas |
---|
Melting point | 202.0 K (−71.15 °C, −96.07 °F) |
---|
Boiling point | 211.3 K (−61.85 °C, −79.1 °F) |
---|
Density (at STP) | 9.73 g/L |
---|
when liquid (at b.p.) | 4.4 g/cm3 |
---|
Critical point | 377 K, 6.28 MPa |
---|
Heat of fusion | 3.247 kJ/mol |
---|
Heat of vaporization | 18.10 kJ/mol |
---|
Molar heat capacity | 5R/2 = 20.786 J/(mol·K) |
---|
Vapor pressure
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
at T (K)
|
110
|
121
|
134
|
152
|
176
|
211
|
|
|
Oxidation states | 2 |
---|
Electronegativity | Pauling scale: 2.2 |
---|
Covalent radius | 150 pm |
---|
Van der Waals radius | 220 pm |
---|
|
|
Crystal structure | face-centered cubic (fcc) |
---|
Thermal conductivity | 3.61 m W/(m·K) |
---|
Magnetic ordering | non-magnetic |
---|
CAS Number | 10043-92-2 |
---|
|
Isotope
|
Abundance
|
Half-life (t1/2)
|
Decay mode
|
Product
|
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
| |
| references | in Wikidata |