|
| ନାମ, ପ୍ରତୀକ | radon, Rn |
|---|
| Appearance | colorless gas |
|---|
| ଉଚ୍ଚାରଣ | RAY-don |
|---|
|
|
|
| ପରମାଣୁ କ୍ରମାଙ୍କ (Z) | 86 |
|---|
| ଶ୍ରେଣୀ, ବ୍ଳକ | group 18 (noble gases), p-block |
|---|
| ପର୍ଯ୍ୟାୟ | period 6 |
|---|
| ମୌଳିକ ପ୍ରକାର | noble gas |
|---|
| ମାନକ ପରମାଣବିକ ଓଜନ (Ar) | (222) |
|---|
| ଇଲେକ୍ଟ୍ରୋନ୍ ବିନ୍ୟାସ | [Xe] 4f14 5d10 6s2 6p6 |
|---|
per shell | 2, 8, 18, 32, 18, 8 |
|---|
|
| ଅବସ୍ଥା | gas |
|---|
| ଗଳନାଙ୍କ | 202.0 K (−71.15 °C, −96.07 °F) |
|---|
| ସ୍ଫୁଟନାଙ୍କ | 211.3 K (−61.85 °C, −79.1 °F) |
|---|
| ଘନତା at stp (0 °C and 101.325 kPa) | 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 | 18.10 kJ/mol |
|---|
| Molar heat capacity | 5R/2 = 20.786 J/(mol·K) |
|---|
pressure
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| at T (K)
|
110
|
121
|
134
|
152
|
176
|
211
| |
|
| Oxidation states | 6, 2, 0 |
|---|
| 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 |
|---|
|
| ଆବିଷ୍କାର | Friedrich Ernst Dorn (1898) |
|---|
| First isolation | William Ramsay and Robert Whytlaw-Gray (1910) |
|---|
|
|
|
| | references |
