单词 | Ion,Hydrogen |
释义 | Ion,Hydrogen《英文msh词典》Ion,Hydrogen [入口词] Ion,Hydrogen [主题词] Protons [英文释义] Stable elementary particles having the smallest known positive charge,found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom,i.e.,the hydrogen ion. |
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