how many neutrons does uranium 235 have

  in Egyéb - 2020-12-30

SURVEY . How many neutrons does the isotope uranium-235 have - Answer . How many neutrons does it have? Uranium-238 isotope is most common isotope of uranium found on Earth (about 99.28% of the entire Earth’s uranium is basically U-238). The half-life of uranium 238 is of 4.5 billion years, while uranium 235 has a … atomic number and electrons. Tags: The atomic number, #Z#, of any element, is the number of protons, positively charged nuclear particles, contained in the nucleus.The mass number (#235#) is the sum of the number of protons, AND the number of neutrons, NEUTRALLY charged nuclear particles.Note that only protons and neutrons contribute to atomic mass to any degree.. You have #""^235U#.If #Z=92# how many neutrons … Even though uranium is abundantly available on Earth, the uranium-235 isotope has low abundancy (only about 0.72% of the entire Earth’s uranium is U-235). 55. electrons = 92. 143. Which of the following is not a criterion to make a nuclear bomb? Uranium has the highest atomic weight (19 kg m) of all naturally occurring elements. Answer and Explanation: Uranium-235 (235 U) is an isotope of uranium making up about 0.72% of natural uranium.Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a fission chain reaction.It is the only fissile isotope that exists in nature as a primordial nuclide.. Uranium-235 has a half-life of 703.8 million years. A uranium nucleus has 92 protons. There are some good answers here, but I'll address uranium specifically. A) 92 B) 143 C) 235 D) 327 56. It was discovered in 1935 by Arthur Jeffrey Dempster. Radioactive isotope technetium-99m has a half-life of 6 hours. See answer the choices are 92, 93, 143, or 235 harmonympaull harmonympaull atomic number and neutrons. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. 146. cenzzzzzzzzie cenzzzzzzzzie 05/14/2020 Physics High School +5 pts. answer choices . Uranium has 92 protons and either 143 or 146 neutrons, for uranium-235 and uranium-238 respectively. Answered Uranium-235 has 92 protons. When bombarded with neutrons it undergoes fission with the release of energy. 238. Q. All isotopes of uranium are unstable and radioactive, but uranium 238 and uranium 235 have half-lives which are sufficiently long to have allowed them to still be present in the Solar System and indeed on Earth. Name: Uranium Symbol: U Atomic Number: 92 Atomic Mass: 238.0289 amu Melting Point: 1132.0 °C (1405.15 K, 2069.6 °F) Boiling Point: 3818.0 °C (4091.15 K, 6904.4 °F) Number of Protons/Electrons: 92 Number of Neutrons: 146 Classification: Rare Earth Crystal Structure: Orthorhombic Density @ 293 K: 18.95 g/cm 3 Color: silverish Atomic Structure Get the answers you need, now! Uranium 235. How many neutrons does uranium-235 have? neutrons = 143 . A) fissionable material B) excess production of neutrons C) nuclear chain reaction D) source of neutrinos to trigger explosion 57. answer choices . As all uranium nuclei have 92 protons, the nucleus of a uranium-235 atom will also have 143 neutrons to give it a total atomic mass number of 235. How many neutrons does it have? protons, atomic number, and mass number. Uranium is a silvery-white metallic chemical element in the periodic table, with atomic number 92. Tags: Question 5 . Uranium 235 definition, the radioactive uranium isotope having a mass number of 235, comprising 0.715 percent of natural uranium. 235 U belongs to primordial nuclides, because its half-life is comparable to the age of the Earth (~4.5×10 9 years). 60 seconds . How many neutrons does a uranium-235 nucleus have? Uranium-235 is an isotope of Uranium-238, all this means is that Uranium-235 has the same number of protons and electrons as Uranium-238, but a different number of neutrons. neutrons & mass number. 92. 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