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How many protons neutrons and electrons in uranium 240? Uranium 240 has 92 protons and electrons, but 148 neutrons because the atomic number is 92 and the atomic mass is 240. Edit
Uranium was formed when the Earth was created and is found in rocks. all over the world. Rocks that contain a lot of uranium are called uranium. ore, or pitch-blende. Uranium, although abundant, is a nonrenewable. energy source. Three isotopes of uranium are found in nature, uranium-234, uranium-235, and uranium-238. These numbers refer to the number of. neutrons and protons in each atom. Uranium-235 is the form commonly. used for energy production because, unlike the other isotopes, the. nucleus splits easily when bombarded by a neutron.