Amount of energy needed to split up a nucleus into its individual nucleons is called its binding energy. Class 12 Physics Chapter 13 Nuclei Session 2024-2025.
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Densities of both nuclei are equal because nuclear density is independent of the mass number of a nuclide. Class 12 Physics Chapter 13 Nuclei Session 2024-2025.
Ionisation energy of an atom is defined as the energy required to remove an electron from ground state energy level to its free state. Ionisation energy of hydrogen is E = + me⁴/ 8€o²n²h² = + 13.6 eV . Class ...
Two important limitations of Rutherford nuclear model of the atom are as follows: (i) An electron revolving in a circular orbit is an example of accelerated motion. According to classical Physics, a particle in accelerated motion must radiate energy. Consequently, ...
Basic assumptions of Rutherford’s atom model are as follows: (i) The nucleus of an atom contains whole positive charge and almost whole mass of the atom. Size of a nucleus is extremely small as compared to the overall size of ...
Due to fall of electron from higher to lower energy level, the difference in energy is emitted in the form of electromagnetic radiation only because electrons can interact only electromagnetically. Class 12 Physics Chapter 12 Atoms Session 2024-2025.
Total length of an orbital path of electron in nth state of atom should be in times (where n is an integer), the value of de-Broglie wavelength λ.. Thus, 2πτη = η λde. Class 12 Physics Chapter 12 Atoms Session ...
Third excited state in hydrogen atom corresponds to n = 4. Hence maximum number of spectral lines, which can be emitted, is = n(n-1)/2 = 4(4-1)/2 = 6. Class 12 Physics Chapter 12 Atoms Session 2024-2025.
Jonisation energy of an atom is defined as the energy required to remove an electron from its ground state energy level to its free state. Ionisation energy for a hydrogen atom is 13.6 eV. Class 12 Physics Chapter 12 Atoms ...
According to Bohr’s quantum condition, the angular momentum of an electron in its stationary (or stable) orbit should be an integer multiple of h/2π i.e., Ln = m vn.rn = n h/2π , where n is a positive integer.