Ninety-four nuclear reactors in 28 states generate nearly 20 percent of the nation’s electricity, all without carbon emissions because reactors use … However, some atoms are radioactive and send off part of their nuclear energy as radiation. Nuclear Energy Definition and Explanation. Nuclear energy is the energy in the nucleus, or core, of an atom. Atoms are the most simple blocks that make up matter.Every atom has in its center a very small nucleus.Normally, nuclear energy is hidden inside the atoms. Nuclear power is an alternative to generating energy like electricity. Atomic nuclei where these reactions occur are either slow fission within special and tight nuclear plants or rapid fission meaning. The units of energy are joules. in those used in deadly weapons that cause severe consequences. Nuclear energy definition is - energy that is created by splitting apart the nuclei of atoms. nuclear meaning: 1. being or using the power produced when the nucleus of an atom is divided or joined to another…. What Is Nuclear Energy? Nuclear energy definition: energy released during a nuclear reaction as a result of fission or fusion | Meaning, pronunciation, translations and examples ‘The result might be a chain reaction: a self-sustaining release of nuclear energy.’ ‘To generate electricity, we use hydroelectric power, coal and nuclear energy.’ ‘At first, the program focused mainly on the use of nuclear energy for power generation.’ Nuclear Energy Is Extraordinary. 1. Atoms are the basic building blocks of matter. nuclear synonyms, nuclear pronunciation, nuclear translation, English dictionary definition of nuclear. Atoms are tiny units that make up all matter in the universe, and energy is what holds the nucleus together. The Sun produces energy using the mechanism of nuclear fusion. Nuclear Reactions. Using electric or plug-in hybrid electric vehicles (PHEVs) powered by nuclear reactors, we could reduce our oil demands by orders of magnitude. When the nuclear fission reactor creates heat, the nuclear reactor contains the heat and uses it to create steam. the energy released by a nuclear reaction; either through nuclear fission or nuclear fusion. Introduction Nuclear energy. Electrons and nuclei are kept together by electrostatic attraction (negative attracts positive). Mass lost its absoluteness.One of the striking results of Einstein’s theory of relativity is that mass and energy are equivalent and convertible one into the other.Equivalence of the mass and energy is described by Einstein’s famous formula E = mc 2. Nuclear definition is - of, relating to, or constituting a nucleus. Biology Of, relating to, or forming a ... and atomic mean the same thing when referring to weapons or to the making of power: We say nuclear (or atomic) weapons and nuclear (or atomic) energy. Physics of nuclei. What does nuclear energy mean? nuclear energy Energy released mainly as heat, light and ionizing radiation as a result of changes in the nuclei of atoms. nuclear energy definition, ... way--a nuclear fission chain reaction. Nuclear energy is the energy in the atomic nucleus, that is, the central part of an atom. What is Nuclear Energy. Nuclear Energy Definition. In its broadest sense, the term refers both to the uncontrolled release of energy, as in fission or fusion weapons, and to the controlled release of energy, as in a nuclear power plant. Looking for nuclear potential energy? Everything in the known universe consists of very tiny units called atoms. Nuclear power, electricity generated by power plants that derive their heat from fission in a nuclear reactor. 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