It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg-marginally greater than that of the proton but nearly 1839 times greater than that of the electron. In the universe, neutrons are abundant, making up more than half of all visible matter. Phosphate is the conjugate base of phosphoric acid, which is produced on a massive scale for use in fertilisers.Ī neutron is one of the subatomic particles that make up matter. The most prevalent compounds of phosphorus are derivatives of phosphate, a tetrahedral anion.
ATOMIC RADIUS OF PHOSPHORUS FREE
In the periodic table, the elements are listed in order of increasing atomic number Z.Įlectron configuration of Phosphorus is 3s2 3p3.Īs an element, phosphorus exists in two major forms-white phosphorus and red phosphorus-but because it is highly reactive, phosphorus is never found as a free element on Earth. The number of electrons in each element’s electron shells, particularly the outermost valence shell, is the primary factor in determining its chemical bonding behavior. The configuration of these electrons follows from the principles of quantum mechanics. Since the number of electrons and their arrangement are responsible for the chemical behavior of atoms, the atomic number identifies the various chemical elements. Each electron is influenced by the electric fields produced by the positive nuclear charge and the other (Z – 1) negative electrons in the atom.
![atomic radius of phosphorus atomic radius of phosphorus](https://hi-static.z-dn.net/files/d37/c623902082d777e4601ab1ce7c39a832.jpg)
Therefore, the number of electrons in neutral atom of Phosphorus is 15. The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. It is used in life-science laboratories in applications in which lower energy beta emissions are advantageous such as DNA sequencing. 33P, a beta-emitter (0.25 MeV) with a half-life of 25.4 days. Phosphorus-33 is composed of 15 protons, 18 neutrons, and 15 electrons. 32P, a beta-emitter (1.71 MeV) with a half-life of 14.3 days, which is used routinely in life-science laboratories, primarily to produce radiolabeled DNA and RNA probes. Phosphorus-32 is composed of 15 protons, 17 neutrons, and 15 electrons. The half-integer nuclear spin and high abundance of 31P make phosphorus-31 NMR spectroscopy a very useful analytical tool in studies of phosphorus-containing samples. Phosphorus-31 is composed of 15 protons, 16 neutrons, and 15 electrons. Only 31P is stable and is therefore present at 100% abundance. Main Isotopes of PhosphorusĢ3 isotopes of phosphorus are known, ranging from 25P to 47P. Mass numbers of typical isotopes of Phosphorus are 31. Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z.įor stable elements, there is usually a variety of stable isotopes.
![atomic radius of phosphorus atomic radius of phosphorus](https://image1.slideserve.com/3403664/atomic-radius-l.jpg)
Neutron number plus atomic number equals atomic mass number: N+Z=A. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10 -19 coulombs. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.
![atomic radius of phosphorus atomic radius of phosphorus](http://2.bp.blogspot.com/-fci31VZzyb0/UF6oeF6XaxI/AAAAAAAASYM/aj9H-MeF3oU/w1200-h630-p-k-nu/periodic+table+ionic+radii.png)
Phosphorus is a chemical element with atomic number 15 which means there are 15 protons in its nucleus.