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Difference between: nucleus and nucleons,valence shell and penultimate shell? |
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Answer» A nucleus is at the center of an atom, and it is that collection of particles, protons and neutrons, that make up the nucleus of that atom. Because ATOMIC nuclei are composed of protons and neutrons, we have come up with the term nucleon to describe any particle that makes up an atomic nucleus. That MEANS EITHER a proton or a neutron, when we talk about them as part of the nucleus of an atom, can be properly called a nucleon. The nucleus of an atom is said to be MADE up of NUCLEONS. |
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