2,1. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. The only naturally occurring isotope of phosphorus is that of mass 31.

Element Phosphorus (P), Group 15, Atomic Number 15, p-block, Mass 30.974.

Phosphorus is a monoisotopic element and its atomic weight is determined solely by its isotope 31 P. The Commission last revised the standard atomic weight of phosphorus in 2013 based on the latest Atomic Mass Evaluation by IUPAP.

Atomic mass. What is Phosphorus's mass number? Phosphorus-32 (32 P) is a radioactive isotope of phosphorus.The nucleus of phosphorus-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorus, phosphorus-31.Phosphorus-32 only exists in small quantities on Earth as it has a short half-life of 14.29 days and so decays rapidly.. Phosphorus is found in many organic molecules and so phosphorus-32 … So, this element has 15 protons (atomic number), 15 electrons, and 16 neutrons (mass number minus atomic number). ... ›› More information on molar mass and molecular weight. 2008-11-29 18:36:05 2008-11-29 18:36:05. i dont know if u what u meant but here's this Atomic Number: 15 Atomic Mass: 30.97376. ChEBI Phosphorus P-32 is a radioactive isotope of phosphorus with beta particle-emitting radiocytotoxic activity. Melting point 15.

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Phosphorus-32 atom is the radioactive isotope of phosphorus with relative atomic mass 31.973907 and half-life of 14.26 days. Atomic number of phosphorus is 15 . ›› Phosphorus molecular weight. Phosphorus is a non-metallic chemical element and it is a member of group 15 and period 3 in the periodic table.

Molar mass of P = 30.973761 g/mol. Density.

Oxidation states ± 3, 4, 5 : Electronegativity according to Pauling. The Periodic Table with Atomic Mass will give you the atomic weight, or atomic mass, of the elements. Wiki User.

Atomic mass of silicon is 30.97 To find out mass number,we need to round 30.97 to a whole number.So,by rounding,we are getting mass number of phosphorus.The mass number of phosphorus is 31. The other isotopes from mass 24 to mass 46 have been synthesized by appropriate nuclear reactions.All of these are radioactive with relatively short half-lives. Determine the mass of phosphorous from the periodic table Because the atomic mass of phosphorous is 30.97 amu, we can say the mass is m=4xx30.97=123.88 "g"/"mol" This means that 1 mol of "P"_4 weighs …

Mass Numbers - How to find Mass Numbers The mass number is established by rounding the atomic weight to the nearest whole number.