# ଫସ୍‌ଫରସ

Phosphorus,  15P| waxy white (yellow cut), red (granules centre left, chunk centre right), and violet phosphorus |
| ସାଧାରଣ ଗୁଣ |
| ନାମ, ପ୍ରତୀକ | phosphorus, P |
| Appearance | colourless, waxy white, yellow, scarlet, red, violet, black |
| ଉଚ୍ଚାରଣ | /ˈfɒsfərəs/ FOS**-fər-əs*  |
| Phosphorus in the periodic table |
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 | N ↑ **P** ↓ As |
| silicon ← **phosphorus** → sulfur |

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| ପରମାଣୁ କ୍ରମାଙ୍କ (*Z*) | 15 |
| ଶ୍ରେଣୀ, ବ୍ଳକ | group 15 (pnictogens), p-block  |
| ପର୍ଯ୍ୟାୟ | period 3  |
| ମୌଳିକ ପ୍ରକାର |   nonmetal |
| ମାନକ ପରମାଣବିକ ଓଜନ (±) (*A*r) | 30.973762(2)  |
| ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ | [Ne] 3s2 3p3  |
| per shell | 2, 8, 5 |
| ଭୌତିକ ଗୁଣ |
| ଅବସ୍ଥା | solid |
| Density near r.t. | (white) 1.823, (red) ≈ 2.2 – 2.34, (violet) 2.36, (black) 2.69 g/cm3 |
| Triple point |  (red) 862.7 K, 4367 kPa  |
| Heat of fusion | (white) 0.66 kJ/mol  |
| Heat of  | (white) 12.4 kJ/mol  |
| Molar heat capacity | (white) 23.824 J/(mol·K)  |
| **pressure** (white)

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| at T (K) | 279 | 307 | 342 | 388 | 453 | 549 |

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| **pressure**

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| at T (K) | 455 | 489 | 529 | 576 | 635 | 704 |

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| Atomic properties |
| Oxidation states | **5**, 4, 3, 2, 1, −1, −2, −3 ​mildly acidic oxide |
| Electronegativity | Pauling scale: 2.19  |
|  energies |  (more) |
| Covalent radius | 107±3 pm  |
| Van der Waals radius | 180 pm  |
| Miscellanea |
| Crystal structure |  ​simple triclinic |
| Thermal conductivity | (white) 0.236, (black) 12.1 W/(m·K)  |
| Magnetic ordering | (white, red, violet, black) diamagnetic  |
| Bulk modulus | (white) 5, (red) 11 GPa  |
| CAS Number | 7723-14-0  |
| ଇତିହାସ |
| ଆବିଷ୍କାର | Hennig Brand (1669) |
| Recognized as an element by | Antoine Lavoisier (1777) |
| Most stable isotopes of phosphorus |
|

| iso | NA | half-life | DM | DE (MeV) | DP |
| --- | --- | --- | --- | --- | --- |
| 31P | 100% | 31P is stable with 16 neutrons |
| 32P | syn | 14.28 d | β− | 1.709 | 32S |
| 33P | syn | 25.3 d | β− | 0.249 | 33S |

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**ଫସ୍‌ଫରସ** ହେଉଛି ଏକ ରାସାୟନିକ ମୌଳିକ ଯାହାର ପ୍ରତୀକ P ଓ ପରମାଣୁ କ୍ରମାଙ୍କ ୧୫ ।

## ଧର୍ମ

### ଭୌତିକ

### ରସାୟନିକ

### ସମସ୍ଥାନିକ

## ଉପସ୍ଥିତି

## ଗଠନ

## ଉତ୍ପାଦନ

## ବ୍ୟବହାର

## ଆହୁରି ଦେଖନ୍ତୁ

## ଆଧାର

## ସହାୟକ ଗ୍ରନ୍ଥ

* Emsley, John (2000). *The Shocking history of Phosphorus. A biography of the Devil's Element*. London: MacMillan. ISBN 0-333-76638-5. `{{cite book}}`: Invalid `|ref=harv` (help)
* Parkes, G.D.; Mellor, J.W. (1939). *Mellor's Modern Inorganic Chemistry*. Longman's Green and Co. `{{cite book}}`: Invalid `|ref=harv` (help)
* Podger, Hugh (2002). *Albright & Wilson. The Last 50 years*. Studley: Brewin Books. ISBN 1-85858-223-7. `{{cite book}}`: Invalid `|ref=harv` (help)
* Threlfall, Richard E. (1951). *The Story of 100 years of Phosphorus Making: 1851–1951*. Oldbury: Albright & Wilson Ltd. `{{cite book}}`: Invalid `|ref=harv` (help)

## ବାହାର ଲିଙ୍କ

* Phosphorus at *The Periodic Table of Videos* (University of Nottingham)
* Further warnings of toxic effects and recommendations for treatment can be found in "Emergency War Surgery NATO Handbook: Part I: Types of Wounds and Injuries: Chapter III: Burn Injury: Chemical Burns And White Phosphorus injury". Archived from the original on 2009-07-15. Retrieved 2009-05-05.
* Simon, Fa; Pickering, Lk (1976). "Acute yellow phosphorus poisoning. "Smoking stool syndrome"". *JAMA: the Journal of the American Medical Association*. **235** (13): 1343–4. doi:10.1001/jama.235.13.1343. ISSN 0098-7484. PMID 946251.`{{cite journal}}`: CS1 maint: multiple names: authors list (link)
* eMedicine.com: Article on White Phosphorus as used as weapon
* Website of the Technische Universität Darmstadt and the CEEP about Phosphorus Recovery