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- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/12%3A__Nuclear_Physics/12.02%3A_Properties_of_NucleiThe atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These partic...The atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These particles are packed together into an extremely small space at the center of an atom. According to scattering experiments, the nucleus is spherical or ellipsoidal in shape, and about 1/100,000th the size of a hydrogen atom. Protons and neutrons within the nucleus are called nucleons.
- https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/University_Physics_III_-_Optics_and_Modern_Physics_(OpenStax)/10%3A__Nuclear_Physics/10.02%3A_Properties_of_NucleiThe atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These partic...The atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These particles are packed together into an extremely small space at the center of an atom. According to scattering experiments, the nucleus is spherical or ellipsoidal in shape, and about 1/100,000th the size of a hydrogen atom. Protons and neutrons within the nucleus are called nucleons.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Physics_II_(2212)/12%3A__Nuclear_Physics/12.01%3A_Properties_of_NucleiFor large values of \(Z\), the number of neutrons is greater than the number of protons \((N > P)\) and the data points fall above the red line. The mass of an individual nucleus is often expressed in...For large values of \(Z\), the number of neutrons is greater than the number of protons \((N > P)\) and the data points fall above the red line. The mass of an individual nucleus is often expressed in atomic mass units (u), where \(u = 1.66054 \times 10^{-27} kg\). (An atomic mass unit is defined as 1/12th the mass of a \(^{12}C\) nucleus.) In atomic mass units, the mass of a helium nucleus (A = 4) is approximately 4 u.
- https://phys.libretexts.org/Courses/Bowdoin_College/Phys1140%3A_Introductory_Physics_II%3A_Part_2/07%3A__Nuclear_Physics/7.02%3A_Properties_of_NucleiThe atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These partic...The atomic nucleus is composed of protons and neutrons. Protons and neutrons have approximately the same mass, but protons carry one unit of positive charge and neutrons carry no charge. These particles are packed together into an extremely small space at the center of an atom. According to scattering experiments, the nucleus is spherical or ellipsoidal in shape, and about 1/100,000th the size of a hydrogen atom. Protons and neutrons within the nucleus are called nucleons.
