Cryosol: Cryosol, one of the 30 soil groups in the classification system of the Food and Agriculture Organization (FAO). Cryosols are characterized by frozen soil ... Britannica.com
Robert A. Millikan's Definitive Measurement. Robert A. Millikan started his work on electron charge in 1906 and continued for seven years. His 1913 article announcing the determination of the electron's charge is a classic and Millikan received the Nobel Prize for his efforts.
Electron has a negative charge. An atom is made up of nucleons and the electrons. Nucleons are present in the core and consists of protons which are positive and neutrons which are neutral. The electrons revolve around the nucleons and are negative in nature. It was in 1897 that J.J. Thomson performed his '' Cathode Ray Experiments.