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Here [Ne] refers to the core electrons which are the same as for the element neon (Ne), the last noble gas before phosphorus in the periodic table. The valence electrons (here 3s 2 3p 3) are written explicitly for all atoms. Electron configurations of elements beyond hassium (element 108) have never been measured; predictions are used below.
Electron configuration 3s 2 3p 3: Electrons per shell: 2, 8, 5: Physical properties; ... Phosphorus is a chemical element; it has symbol P and atomic number 15.
Configurations of elements 109 and above are not available. Predictions from reliable sources have been used for these elements. Grayed out electron numbers indicate subshells filled to their maximum. Bracketed noble gas symbols on the left represent inner configurations that are the same in each period. Written out, these are: He, 2, helium : 1s 2
The portion of its configuration that is equivalent to neon is abbreviated as [Ne], allowing the configuration of phosphorus to be written as [Ne] 3s 2 3p 3 rather than writing out the details of the configuration of neon explicitly. This convention is useful as it is the electrons in the outermost shell that most determine the chemistry of the ...
For example, the electronic configuration of phosphorus (P) is 1s 2 2s 2 2p 6 3s 2 3p 3 so that there are 5 valence electrons (3s 2 3p 3), corresponding to a maximum valence for P of 5 as in the molecule PF 5; this configuration is normally abbreviated to [Ne] 3s 2 3p 3, where [Ne] signifies the core electrons whose configuration is identical ...
Phosphorus in the form of phosphates occur in compounds important to life, such as DNA and ATP. Humans consume approximately 1 g of phosphorus per day. [25] Phosphorus is found in foods such as fish, liver, turkey, chicken, and eggs. Phosphate deficiency is a problem known as hypophosphatemia. A typical 70 kg human contains 480 g of phosphorus ...
For phosphorus, the last previous noble gas is neon, so the configuration is abbreviated to [Ne] 3s 2 3p 3, where [Ne] signifies the core electrons whose configuration in phosphorus is identical to that of neon. Electron behavior is elaborated by other principles of atomic physics, such as Hund's rule and the Pauli exclusion principle.
Atomic number (Z): 15: Group: group 15 (pnictogens) Period: period 3: Block p-block Electron configuration [] 3s 2 3pElectrons per shell: 2, 8, 5: Physical properties; Phase at STP: solid