simple, the bottom number that is missing is the atomic number. Pu is plutonium which happens to have the atomic number of 94. subtract the top number (mass number) and the atomic number and you get the amount of nuetrons, so the answer is 145 neutrons. (its an isotope)
Uranium is the 92nd element on the periodic table. That means there are 92 protons in 1 uranium atom, no matter which isotope. Protons are constant through an element. Every single atom of Uranium has 92 protons. Neutrons, however change with isotopes. 241 is the number of protons and neutrons together. So subtract 92 from 241 to get the number of neutrons in uranium 241
Uranium-230 is a radioactive isotope of uranium with 142 neutrons.
Uranium has 92 electrons and protons.Uranium-234 has 142 neutrons, uranium-235 has 143 neutrons and uranium-238 has 146 neutrons.
Uranium-238 has 146 neutrons.
Uranium-235 and plutonium-239 release alpha, beta, and gamma rays during the process of radioactive decay. Alpha particles are helium nuclei, beta particles are high-energy electrons or positrons, and gamma rays are electromagnetic radiation.
Uranium 235 and Plutonium 239 are fissile elements, fissionable with thermal neutrons.
Uranium is the 92nd element on the periodic table. That means there are 92 protons in 1 uranium atom, no matter which isotope. Protons are constant through an element. Every single atom of Uranium has 92 protons. Neutrons, however change with isotopes. 241 is the number of protons and neutrons together. So subtract 92 from 241 to get the number of neutrons in uranium 241
The isotope plutonium-239, which is synthesized from uranium, has 94 protons (like all isotopes of plutonium) and 145 neutrons in its nucleus. Use the link below for more information on plutonium.
Plutonium-239 has 145 neutrons.
The relative atomic mass of the isotope 239U is 239,054 293 299 ± 0,000 002 052 (atomic mass units).
Uranium-230 is a radioactive isotope of uranium with 142 neutrons.
Uranium has 92 electrons and protons.Uranium-234 has 142 neutrons, uranium-235 has 143 neutrons and uranium-238 has 146 neutrons.
Not uranium 239, but uranium 235 and plutonium 239.
Uranium 238 has 146 neutrons.
Uranium-238 has 146 neutrons.
uranium 238 is a fast neutron absorber the answer is correct but for more explanation:- when uranium 238 is bombard by neutron >>> uranium 238 , undergoes B decay>>>Np 239 ,undergoes B decay >>> Pu 239 finally undergoes alpha decay >>> fissile U
Plutonium 239 is obtained in all reactors using uranium as nuclear fuel.