Assertion: hydrogen atom's proton | /r/HasProperty | confined to the nucleus
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Source sentences:
text: It is composed of a proton which is confined to the nucleus and an electron which circulates around the nucleus in circular motion.
text: <\/p><\/div>"} 3 Removal of the only electron in the hydrogen atom by ionization forms a positively charged hydrogen atom which is called a proton because it has only a proton confined to the nucleus.