Phosphorus Mass Number
- Phosphorus Number Of Protons
- Phosphorus Protons Neutrons Electrons
- How Many Electrons Are In Phosphorus
Phosphorus-33 means it has a mass number of 33. Has an atomic number of 15, it has 15 Protons. Since electrons almost have no mass, the only things contributing it are the Protons and Neutrons. 15: Phosphorus - Phosphorous P Group: 15 Period: 3 Atomic number: 15 Atomic mass: 30.973762 Configuration: Ne 3s 2 3p 3 Atomic radius: 98 pm Covalent radius: 107 pm. Phosphide, any of a class of chemical compounds in which phosphorus is combined with a metal.The phosphide ion is P 3−, and phosphides of almost every metal in the periodic table are known. They exhibit a wide variety of chemical and physical properties. Although there are a number of ways to prepare phosphides, the most general method is to heat stoichiometric amounts of the metal and red. Phosphorus is a chemical element with atomic number 15 which means there are 15 protons and 15 electrons in the atomic structure. The chemical symbol for Phosphorus is P. Atomic Mass of Phosphorus Atomic mass of Phosphorus is 30.9738 u.
Atomic Number of Phosphorus is 15.
Chemical symbol for Phosphorus is P. Number of protons in Phosphorus is 15. Atomic weight of Phosphorus is 30.973762 u or g/mol. Melting point of Phosphorus is 44 (P4) °C and its the boiling point is 280 (P4) °C.
» Boiling Point» Melting Point» Abundant» State at STP» Discovery Year
About Phosphorus
Phosphorus is a chemical element which comes in two forms, red and white one. Red phosphorus is a non-toxic solid which we all have in our kitchens, on the edges of our matchsticks. White phosphorus is highly toxic, and it can cause burns when contacting human skin. This chemical element has got its name after the Greek expression meaning brighter than light since this element glows in the dark by slow ‘burning’ light. This element is crucial for all living things on our planet since it supports energy generating processes. In nature, phosphorus can be found as an element of various compounds like phosphate rocks and other minerals. Industrially, phosphorus and its compounds can be used as fertilizers, steel production, producing detergents, household goods, soft drinks, poison for rodents, and so on.
Properties of Phosphorus Element
| Atomic Number (Z) | 15 |
|---|---|
| Atomic Symbol | P |
| Group | 15 |
| Period | 3 |
| Atomic Weight | 30.973762 u |
| Density | 1.82 g/cm3 |
| Melting Point (K) | 317.3 K |
| Melting Point (℃) | 44 (P4) °C |
| Boiling Point (K) | 550 K |
| Boiling Point (℃) | 280 (P4) °C |
| Heat Capacity | 0.769 J/g · K |
| Abundance | 1050 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Non-metal |
| Electronegativity (Pauling) χ | 2.19 |
| Ionization Energy (eV) | 10.48669 |
| Atomic Radius | 100pm |
| Covalent Radius | 106pm |
| Van der Waals Radius | 180 |
| Valence Electrons | 5 |
| Year of Discovery | 1669 |
| Discoverer | Brandt |
What is the Boiling Point of Phosphorus?
Phosphorus boiling point is 280 (P4) °C. Need for speed most wanted 2012 cd key. Boiling point of Phosphorus in Kelvin is 550 K.
What is the Melting Point of Phosphorus?
Phosphorus melting point is 44 (P4) °C. Melting point of Phosphorus in Kelvin is 317.3 K.
How Abundant is Phosphorus?
Abundant value of Phosphorus is 1050 mg/kg.
What is the State of Phosphorus at Standard Temperature and Pressure (STP)?
State of Phosphorus is Solid at standard temperature and pressure at 0℃ and one atmosphere pressure.
When was Phosphorus Discovered?
Phosphorus was discovered in 1669.
Phosphorus is a non-metal with diverse biological and industrial significance. It was discovered in 1669 by Hennig Brand and has two allotropic forms and eighteen isotopes.
Discovery and History
The discovery of phosphorus as a novel element was carried out by in Hennig Brand in 1669 by evaporating urine. He obtained a white material that burned brilliantly and emitted a glow in the dark when exposed to oxygen [1]. Antoine Lavoisier identified phosphorus as a separate element in 1777. The name phosphorus also has an interesting origin, as Phosphorus is the name of planet Venus in Ancient Greece language and it means “carrier of light” or “light-bringer”. Commercial scale production of phosphorus was started by Brand and later many scientists, including Robert Boyle, used the same method of phosphorus production developed by Brand. In 1680, Boyle introduced the use of phosphorus to ignite wooden splints with tips of sulfur, and these later were developed into matches [2]. Phosphorus was initially used on a wide scale to make poisons, explosives and nerve agents and due to its toxic and lethal properties, it was commonly named as the “devil’s element”. Gottlieb Gahn and Carl Wilhelm (1796) were the first to discover the presence of phosphorus, in the form of calcium phosphate, in the bones. Until 1840s, one of the major sources of phosphorus has been ashes of bones, and until 1840s. Later in 1850s, the presence of phosphate in rocks on the form of calcium phosphate was discovered and the phosphorus production switched form bones to rocks.
Phosphorus
| Periodic Table Classification | Group 15 Period 3 |
|---|---|
| State at 20C | Solid |
| Color | Colourless, waxy white, yellow, scarlet, red, violet, black |
| Electron Configuration | [Ne] 3s2 3p3 |
| Electron Number | 15 |
| Proton Number | 15 |
| Electron Shell | 2, 8, 5 |
| Density | 1.82 g.cm-3 at 20°C |
| Atomic number | 15 |
| Atomic Mass | 30.97 g.mol -1 |
| Electronegativity according to Pauling | 2.19 |
Occurrence
Phosphorus does not exist in free or elemental state in nature. It forms various compounds and is present in large variety of minerals. The most common source of phosphorus is calcium phosphate that is present in rocks. Phosphorus is an element of great biological value. It is the 6th most abundant element in the living systems. The largest natural reserves of phosphorus are present in Arab region. Other countries or regions that are significant producers of phosphorus include Russia, China, Florida and Morocco [3]. The annual production of elemental phosphorus is around 1000,000 tons.
Physical Characteristics
White phosphorus is yellowish white solid, that has a waxy texture. Phosphorus undergoes spontaneous ignition in air and forms pentoxide (P4O10). There are two allotropic forms of phosphorus, red and black, that differ in physical and chemical properties. Red phosphorus (which is formed by heating of white phosphorus at high temperature) ignites on friction. White phosphorus is a highly toxic substance., while red phosphorus is non-toxic [4]. Phosphorus is water insoluble. Black phosphorus is also termed as violet phosphorus and is the least reactive allotrope of phosphorus. It resembles graphite in appearance and structure.
Chemical Characteristics
White phosphorus is very reactive element. In the presence of oxygen, white phosphorus emits a light green glow, termed as chemiluminescence (glow caused by cold chemical reaction) [5]. The most abundant compounds of phosphorus contain the tetrahedral anion of phosphate (PO43-). There is a vast variety of phosphorus compounds including oxoacids (phosphoric acid), sulfides, nitrides (phosphorus nitride halogens (F2PN, Cl2PN), and phosphides (reaction of metals with red phosphorus). Phosphine (PH3) is a toxic compound with pungent smell, is structural analogue of ammonia. Diphosphine (P2H4), is an analogue of hydrazine and is highly flammable.
Uses and Significance
- The largest use of phosphorus is in the production of fertilizers. It is an essential nutrient for the growth of plants.
- Phosphorus is used in making of safety matches, and various ammunitions, such as incendiary shells and hand grenades etc.
- Phosphorus is used in the manufacturing of bronze and steel.
- It is used in making LEDs (light-emitting diodes).
- Phosphorus is used in making detergents, that functions to remove water hardness and improve the efficiency of detergent.
- It is used in synthesis of nerve agents.
- It is used as active ingredient in various pesticides.
- Phosphoric acid is widely used in manufacturing of soft drinks, baking powder.
- Various compounds of phosphate are used in processing of cheese and meat.
Health Hazards
Phosphorus in the form of phosphate is a vital compound for all living systems. The energy currency of cell, ATP (adenosine triphosphate) that regulates every process in the living cell, uses phosphate. Phosphorylation, that is the process of adding phosphate to various biological molecules, is an important regulatory mechanism in living organisms. Lipids in combination with phosphorus (phospholipids) are the primary building blocks of cell membrane. Phosphorus is present in the building blocks of RNA and DNA. A balanced diet includes a definitive everyday intake of phosphorus. About 0.7 kg of phosphorus is present in an average adult human being, mostly in teeth and bones and in soft tissues of the body. deficiency of phosphate in the body can lead to various physiological effects, including tissue weakness, neurological defects and lack of ATP. Increased intake of phosphate can cause hardening of tissues and organs and diarrhea.
Isotopes of Phosphorus
There are twenty-three isotopes of phosphorus, that range in atomic numbers from 26 to 43. Natural phosphorus constitutes only one stable isotope, phosphorus-31 [6].
REFERENCES
[1]. Beatty, Richard (2000). Phosphorus. Marshall Cavendish. p. 7. ISBN0-7614-0946-7.
Phosphorus Number Of Protons
[2]. Peter Baccini; Paul H. Brunner. Metabolism of the Anthroposphere. MIT Press, 2012. p. 288. ISBN0262300540.
Phosphorus Protons Neutrons Electrons
[3]. Philpott, Tom (March–April 2013). “You Need Phosphorus to Live—and We’re Running Out”. Mother Jones.fwhi
[4]. Abundance. ptable.com
[5]. Michael A. Sommers. Phosphorus. The Rosen Publishing Group, 2007. p. 25. ISBN1404219609. Imovie 10.13 6.
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