କ୍ରିପ୍ଟନ (ଗ୍ରୀକ: [κρυπτός କ୍ରିପ୍ଟସ୍] Error: {{Lang}}: text has italic markup (help)ରୁ ଅସିଛି,ମାନେ "ଲୁଚି ରହିଥିବା ଜିନିଷ") ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ Kr ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୩୬ ।
Quick facts ସାଧାରଣ ଗୁଣ, ନାମ, ପ୍ରତୀକ ...
Krypton, 36Kr |
 Spectral lines of krypton |
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| ନାମ, ପ୍ରତୀକ | krypton, Kr |
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| Appearance | colorless gas, exhibiting a whitish glow in a high electric field |
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| ଉଚ୍ଚାରଣ | KRIP-ton |
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| ପରମାଣୁ କ୍ରମାଙ୍କ (Z) | 36 |
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| ଶ୍ରେଣୀ, ବ୍ଳକ | group 18 (noble gases), p-block |
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| ପର୍ଯ୍ୟାୟ | period 4 |
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| ମୌଳିକ ପ୍ରକାର | noble gas |
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| ମାନକ ପରମାଣବିକ ଓଜନ (Ar) | 83.798 |
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| ଇଲେକ୍ଟ୍ରୋନ୍ ବିନ୍ୟାସ | [Ar] 3d10 4s2 4p6 |
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per shell | 2, 8, 18, 8 |
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| ଅବସ୍ଥା | gas |
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| ଗଳନାଙ୍କ | 115.79 K (-157.36 °C, -251.25 °F) |
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| ସ୍ଫୁଟନାଙ୍କ | 119.93 K (-153.22 °C, -244.12 °F) |
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| ଘନତା at stp (0 °C and 101.325 kPa) | 3.749 g/L |
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| when liquid, at b.p. | 2.413[୧] g/cm3 |
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| Triple point | 115.775 K, 73.2 kPa [୨] |
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| Critical point | 209.41 K, 5.50 MPa |
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| Heat of fusion | 1.64 kJ/mol |
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| Heat of | 9.08 kJ/mol |
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| Molar heat capacity | 5R/2 = 20.786 J/(mol·K) |
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pressure
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
59 |
65 |
74 |
84 |
99 |
120 |
|
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| Oxidation states | 2, 1, 0 |
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| Electronegativity | Pauling scale: 3.00 |
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| Covalent radius | 116±4 pm |
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| Van der Waals radius | 202 pm |
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|
| Crystal structure | face-centered cubic (fcc) |
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| Speed of sound | (gas, 23 °C) 220, (liquid) 1120 m/s |
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| Thermal conductivity | 9.43×10-3 W/(m·K) |
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| Magnetic ordering | diamagnetic[୩] |
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| CAS Number | 7439-90-9 |
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|
| ଆବିଷ୍କାର | William Ramsay and Morris Travers (1898) |
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| First isolation | William Ramsay and Morris Travers (1898) |
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|
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 78Kr |
0.35% |
>1.1×1020 y |
β+β+ |
2.846 |
78Se |
| 79Kr |
syn |
35.04 h |
ε |
- |
79Br |
| β+ |
0.604 |
79Br |
| γ |
0.26, 0.39, 0.60 |
- |
| 80Kr |
2.25% |
80Kr is stable with 44 neutrons |
| 81Kr |
trace |
2.29×105 y |
ε |
- |
81Br |
| γ |
0.281 |
- |
| 82Kr |
11.6% |
82Kr is stable with 46 neutrons |
| 83Kr |
11.5% |
83Kr is stable with 47 neutrons |
| 84Kr |
57.0% |
84Kr is stable with 48 neutrons |
| 85Kr |
syn |
10.756 y |
β− |
0.687 |
85Rb |
| 86Kr |
17.3% |
86Kr is stable with 50 neutrons |
|
| | references |
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