millikan's method to find charge on electron

An electron is defined as a subatomic particle which carries one unit of electrical charge (1.602 x 10 - 1 9 C) and has a mass (9.1 x10 - 2 8 g). The mass of an electron is almost negligible, being 1/1837 t h the mass of an atom of hydrogen. The charge..

The balancing of a chemical equation by ion-electron method (using half reactions) is done acccording to the following steps: Find the elements whose oxidation numbers are changed. Choose the substance, which acts as an oxidizing agent and one that acts as a reducin..

An electron is found to carry 1.6 x 10 - 1 9 coulomb of negative charge. Since this is the smallest negative charge carried by any particle, it is taken as unit negative charge..

It should always be remembered that whenever you have to charge a body, it must be insulated from the earth. It means that the body should be supported on a stand which is made of an insulating material which does not allow charges to pass into the earth. Fix the metal sphere '..

. H 2 S undergoes dissociation and the hydrogen ions are lost. The particles become negatively charged due to (S 2 - ) which are left on the colloidal particles. v) Colloidal particles get charged by the simple process of electron capture. The colloidal particles may a..

Electron affinity is the amount of energy released when an electron is added to an isolated gaseous atom. Atom (g) + electron (g) Anion (g) + energy Electron affinity is the ability of an atom to hold an additional electron. If the atom has..

Electron affinity is the amount of energy released when an electron is added to an isolated gaseous ato..

Production of cathode rays - In 1885, Sir William Crookes carried out a series of investigations into the behaviour of metals heated in a vacuum. The experiment of Crookes and others showed that a heated cathode produced a stream of radiation, which could cause gases at low pressure to glow and whi..

The attractive force between the nucleus and the electron increases with the increase in nuclear charge making it more difficult to remove an electron. The ionization energy thus increases with the increase in the nuclear charge..

Keeping in mind the structure of the atom, we can easily explain charging by rubbing. When glass rod is rubbed with silk, some of the electrons from the atoms on glass are transferred to silk. Because there is a deficiency of electrons in the glass, it becomes positive..