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Polonium has 27 isotopes, more than any other element. All of these isotopes are radioactive. Isotopes are two or more forms of an element. Isotopes differ from each other according to The energy released by polonium during its radioactive breakdown is used in compact heat sources in space ...
Isotopes of hydrogen (3H, 2H) and oxygen (18O) are perfect candidates for groundwater tracers. A survey of isotopic composition of 34 groundwater samples and one Lake from Vojvodina region (Serbia) is presented here. Tritium activity concentration and stable isotope co...
Isotopes Four naturally occurring isotopes of cerium have been discovered: cerium-136, cerium-138, cerium-140, and cerium-142. The last of these isotopes is radioactive. Isotopes are two or more forms of an element. Isotopes differ from each other according to their mass number. The number ...
aCertain types of nuclear reaction are possible,where certain light unclear particles can be combined,or fuse,into heavier particles.Such reactions produce pure energy.The most attractive feature here is that commom elements such as hydrogen isotopes can be used as fuel ,making this source essential...
The activity-composition relationship of oxygen and hydrogen isotopes in aqueous salt solutions: III. Vapor-liquid water equilibration of NaCl solutions to... The effect of dissolved NaCl on equilibrium oxygen and hydrogen isotope fractionation factors between liquid water and water vapor was precisely ...
The proposed method achieves, by the application of electrical potential differences to the ends of a metal matrix of section less than 3x10E-6 square meters, a variation in the chemical potential of hydrogen or of hydrogen isotopes able to increase the density of said species inside the grid...
Raeder S, Sonnenschein V, Gottwald T, Moore I D, Reponen M, Rothe S, Trautmann N and Wendt K 2011 Resonance ionization spectroscopy of thorium isotopes -- towards a laser spectroscopic identefication of the low-lying 7.6 eV isomer of 229Th J. Phys. B: At. Mol. Opt. Phys. 44 165005...
(SF6 CAS No.: 2551-62-4)、硫化氢Hydrogen sulfide(CAS No.: 7783-06-4) 禁用No Use EPA5021 等 SS-00259 全氟辛烷磺酸(及其盐)(PFOS)、全氟辛酸(及其盐和酯) 类(PFOA)(包括但不限于CAS No.335-67-1, 3825-26-1, 335-95-5, 2395-00-8, 335-93-3, 335-66-0, 376-27-2, 3108-24-...
The fine structure constant (electron spin-spin coupling) and the hyperfine structure parameters (electron-nuclear spin coupling, including spin-rotation and electron-nuclear quadrupole coupling) in the low-lying triplet states b3Σ+ u, a3Σ+ g and e3Σ+ u of molecular hydrogen and deuterium are...