phosphorus 32productionprotonsNUCLEAR reactions induced by neutrons in meteorites have been discussed by a number of authors 1–6 . A few radioactive and stable isotopes, produced mainly by thermal and epithermal neutrons, have been measured 7–15 , but there is not much direct information on ...
Phosphorus 32 (P-32) is the phosphorus isotope whose nucleus consists of 15 protons and 17 neutrons. It disintegrates by emitting a β- (1.71 MeV) particle in 32S with a half-life of 14.263 days. It is an artificial radioactive substance obtained by neutron bombardment of stable phosphorus...
The abundances of PN and PO relative to H2were calculated to be 3.0 ± 1.6 × 10−12and 2.0 ± 1.1 × 10−11, respectively. These values are comparable to those found in the solar neighbourhood, as shown in Fig.3. A linear fit to the PO and PN abundances with...
What nuclide has 27 protons and 33 neutrons? Which gas below was not found in the earth's earliest atmosphere? a. O2 b. SH2 c. CH4 d. NH3 e. all the above Which element has the same number of valence electrons as nitrogen (N)? a. carbon (C) b. phosphorus (P) c. neon (Ne...
Another hypothesis to account for the production of the heavy elements beyond the Fe-peak, considers the nucleosynthesis in compact objects, and in particular neutron stars mergers33. In theory, the dynamical ejecta in such objects are extremely rich in neutrons, thus favoring the production of the...
What is phosphorus (element 15), its white and red allotropic forms, is it a metal nonmetal or metalloid, how many electrons, protons, neutrons does it have
Answer and Explanation: (a) {eq}\rm ^8_5 B {/eq}. The number of protons of B is 5 and neutrons 3. To approach the ideal proton-to-neutron ratio, which is 1, some of the... Learn more about this topic: Radioactive Decay |...
In the production of the phosphorus isotope <33>P the reaction <33>S(n,p)<33>P is employed and the irradiating neutrons are obtained from accelerated protons by the reaction <7>Li(p,n)<7>Be. For proton energies of 27 MeV the neutrons are of 1 MeV. The product <33>P is mainly ...
In the production of the phosphorus isotope <33>P the reaction <33>S(n,p)<33>P is employed and the irradiating neutrons are obtained from accelerated protons by the reaction <7>Li(p,n)<7>Be. For proton energies of 27 MeV the neutrons are of 1 MeV. The product <33>P is mainly ...
In the production of the phosphorus isotope <33>P the reaction <33>S(n,p)<33>P is employed and the irradiating neutrons are obtained from accelerated protons by the reaction <7>Li(p,n)<7>Be. For proton energies of 27 MeV the neutrons are of 1 MeV. The product <33>P is mainly ...