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
Ions -- Migration and velocity -- Congresses : Advanced multifunctional electroceramics : selected, peer reviewed papers from the 5th International Conference on Electroceramics, December 12-16, 2011, Sydney, Australia / edited by Sean Li, Thiam Teck Tan and Danyang Wang