Chemistry

Chemistry, 26.07.2019 17:30, aracely11140

"what are the half lives for uranium-235 and uranium-238? "

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Chemistry, 29.07.2019 17:00, temperent6049

Uranium is a metallic element that is used in nuclear reactors and nuclear weapons. the vast majority of uranium found on earth is in the form of uranium-238, an isotope with a mass number of 238, while the uranium that is used for nuclear reactors and weapons is uranium-235, an isotope with a mass number of 235. what is the atomic difference between uranium-235 and uranium-238? uranium-235 has three fewer protons than uranium-238. uranium-235 has three fewer neutrons than uranium-238. uranium-235 has three fewer electrons than uranium-238. uranium-235 has three fewer atoms than uranium-238.

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Chemistry, 18.09.2019 22:00, dmahaney8538

Which of the following statements are true of uranium-238? i. its chemical properties will be exactly like those of uranium-235. ii. its mass will be slightly different from that of an atom of uranium-235. iii. it will contain a different number of protons than an atom of uranium-235. iv. it is more plentiful in nature than uranium-235. a. iii, iv b. i, ii, iii c. i, ii, iv d. ii, iii, iv e. all of these

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