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+ | [[File:470px-Nucleus_drawing.svg.png|thumb|250px|A model of the atomic nucleus. In the microcosm, ''atomic matter'' consists of {{wc|physics|subatomic particle}}s, such as the {{wc|physics|atomic nucleus}} composed of [[proton]]s and [[neutron]]s, and orbiting {{wc|physics|electron}}s.<ref name=Davies2> |
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Latest revision as of 15:38, 24 January 2018
A model of the atomic nucleus. In the microcosm, atomic matter consists of subatomic particles, such as the atomic nucleus composed of protons and neutrons, and orbiting electrons.[1][2]
Matter, in formulas concerning general relativity and cosmology, it is considered as anything that contributes to the energy–momentum of a system, specifically, anything that is not purely gravity.[3][4] In this view, light and other massless particles and fields are all part of "matter".
References[]
- ↑ P. Davies (1992). The New Physics: A Synthesis. Cambridge University Press. p. 1. ISBN 0-521-43831-4. https://books.google.com/?id=akb2FpZSGnMC&pg=PA1.
- ↑ G. 't Hooft (1997). In search of the ultimate building blocks. Cambridge University Press. p. 6. ISBN 0-521-57883-3. https://books.google.com/?id=e-7eAp-bVbEC&pg=PA6.
- ↑ S.M. Caroll (2004). Spacetime and Geometry. Addison Wesley. pp. 163–164. ISBN 0-8053-8732-3.
- ↑ P. Davies (1992). The New Physics: A Synthesis. Cambridge University Press. p. 499. ISBN 0-521-43831-4. https://books.google.com/?id=akb2FpZSGnMC&pg=PA499. "Matter fields: the fields whose quanta describe the elementary particles that make up the material content of the Universe (as opposed to the gravitons and their supersymmetric partners)."