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Infobox
Test1
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Test2
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caption = Hydrogen atom orbitals at different energy levels. The brighter areas are where you are most likely to find an electron at any given time. | num_types = | composition = Elementary particle<ref name="prl50"/> | statistics = Fermionic | group = Lepton | generation = First | interaction = Gravity, electromagnetic, weak | antiparticle = Positron (also called antielectron) | theorized = Richard Laming (1838–1851),<ref name="farrar"/> G. Johnstone Stoney (1874) and others.<ref name="arabatzis"/><ref name="buchwald1"/> |
discovered = J. J. Thomson (1897)<ref name="thomson"/> | symbol = Template:SubatomicParticle, Template:SubatomicParticle | mass = Template:Val<ref name="2010 CODATA" /> Template:Val<ref name="2010 CODATA" /> [[[:Template:Val]]]−1 u<ref group=note>The fractional version's denominator is the inverse of the decimal value (along with its relative standard uncertainty of Template:Val).</ref> Template:Val<ref name="2010 CODATA"/> |
electric_charge = Template:Val<ref group=note>The electron's charge is the negative of elementary charge, which has a positive value for the proton.</ref> Template:Val<ref name="2010 CODATA" /> Template:Val |
magnetic_moment = Template:Gaps<ref name="2010 CODATA" /> | spin = Template:Sfrac | mean_lifetime = stable ( > Template:Val<ref name=bx2015>{{cite journal | author = Agostini M. et al. (Borexino Coll.) | year = 2015 | title = Test of Electric Charge Conservation with Borexino | url = http://link.aps.org/doi/10.1103/PhysRevLett.115.231802 | journal = Physical Review Letters | issue = 23 | pages = 231802 | doi = 10.1103/PhysRevLett.115.231802 | bibcode = 2015PhRvL.115w1802A | arxiv = 1509.01223 |
