rutherfords atomic model

Dalton had postulated that matter is made up of atoms, which are indivisible. Thomson was the first to suggest a structure for an atom. According to him, an atom is a positively charged sphere of radius=10 - 1 0 m in which the mass and the positive charge of t..

Solids are substances having definite volume and definite shape. In terms of kinetic molecular model, in solids there is a regular order in the arrangement of the constituting particles (atoms, molecules or ions) i.e. the particles constituting the solids occupy fixed positions ..

It could not explain the line spectrum of multi electron atoms. This model failed to explain the effect of magnetic field on the spectra of atoms (Zeeman effect). The effect of electric field on the spectra could not be explained by Bohr's model (Star..

The Nucleus - Rutherford and his co-workers, performed series of scattering experiments and concluded that the entire mass and the positive charge is concentrated in a very small region at the centre of the atom, known as nucleus. The radius of the nucleus is about 10 - 1 5 m i...

Atoms are made up of three fundamental particles: electrons, protons and neutrons. Discharge tube experiments by William Crookes and J.J. Thomson led to the discovery of electron. Goldstein's experiment with the discharge tube having a perforated cathode led to the discovery of an..

In the Bohr model of the hydrogen atom the electron revolves around the nucleus in a path of radius 5.1 x 10 - 1 1 m at a frequency of 6.8 x 10 1 5 revolution per secon..

08. - In the Bohr model of the hydrogen atom the electron revolves around the nucleus in a path of radius 5.1 x 10 - 1 1 m at a frequency of 6.8 x 10 1 5 revolution per second. What is the value of magnetic field at the center of the orbi..

The phenomenon of spontaneous disintegration of an unstable nucleus of naturally occurring isotope accompanied by emission of active radiations line a , b and g radiations is known as Natural Radioactivity. These radiations come from the breakup of the central core or nuclei of heavier elemen..

According to Heisenberg's uncertainty principle, it is impossible to describe the exact position of an electron at a given moment in terms of position, we can speak of most probable regions where the probability of finding an electron in the space around the nucleus of an atom is high. T..