Complex sentence: Sir Joseph John Thomson (18 December 1856--30 August 1940) was an English physicist and Nobel laureate in physics, credited with the discovery and identification of the electron; and with the discovery of the first subatomic particle.
Split into simpler sentences: Sir Joseph John Thomson (18 December 1856--30 August 1940) was an English physicist. Thus he is credited with the discovery and identification of the electron; and with the discovery of the first subatomic particle.