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Phosphorus is a chemical element with the symbol P and the atomic number 15. Elemental phosphorus exists in two ... a concentration of 1.7–8.7% phosphorus by mass ...
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z). ... atomic mass Electronegativity ... Phosphorus: P: 30.973762(2) 2.19 ...
32 P is a radioactive isotope of phosphorus with relative atomic mass 31.973907 and half-life of 14.26 days. 32 P is a radioactive isotope of phosphorus with beta particle-emitting radiocytotoxic activity.
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
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 ...
Spectral lines of phosphorus: Other properties; ... (extends period 8 when atomic number ≥ 119. ... mass number comment: mass number comment:
The standard atomic weight (A r °(Cu)) for copper is the average, weighted by their natural abundance, and then divided by the atomic mass constant m u. [ 1 ] The standard atomic weight of a chemical element (symbol A r °(E) for element "E") is the weighted arithmetic mean of the relative isotopic masses of all isotopes of that element ...
The nucleon number (mass number) is shown in the left superscript position (e.g., 14 N). This number defines the specific isotope. ... Atomic number Notes Phosphorus: 15