Which best describes the effect of j. j. thomson’s discovery?

J.J. Thomson's discovered electrons. He showed us that atoms can be split into even smaller parts

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.