Science > Physics > Cathode Rays and X- Rays > Cathode Rays In 1859, Julius Plucker started the study of the conduction of electricity through gases at low pressure in the discharge tube. William Crooke, J. Perrin, J. J. Thomson did a further investigation in this field. In 1885, Sir William Crookes carried out several […]
Science > Physics > Atoms, Molecule, and Nuclei > Hydrogen Spectrum The origin of spectral lines in the hydrogen atom (Hydrogen Spectrum) can be explained on the basis of Bohr’s theory. The hydrogen atom is said to be stable when the electron present in it revolves around the nucleus in the first orbit having the […]
Science > Physics > Atoms, Molecule, and Nuclei > Bohr’s Model of an Atom In the last article, we have studied Rutherford’s model of an atom, its merits, and demerits. In this article, we shall study Bohr’s Model of an atom, its merits, and demerits. To overcome the limitations of Rutherford’s model of an atom, […]
Science > Physics > Atoms, Molecule, and Nuclei > Rutherford’s Model of an Atom In this article, we shall study Dalton’s atomic theory, Rutherford’s model of an atom, its merits, and demerits. Dalton’s Atomic Theory: This theory was proposed by English chemist John Dalton in 1808. The main propositions of the theory are as follows: […]