11th NCERT Chemistry Chapter 2
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– Discovery of sub-atomic Particles
– Energies of Orbitals
– Stability of Completely Filled and Half-filled Subshells
Students should study the discovery of sub-atomic particles, energies of orbitals, and the stability of completely filled and half-filled subshells in the chapter.【4:1†source】【4:3†source】【4:2†source】
What is the energy needed to remove one mole of electrons from sodium when electromagnetic radiation of wavelength 300 nm falls on its surface and electrons are emitted with a kinetic energy of 1.68 × 10^5 J/mol?
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Calculate the energy associated with the photon of a wavelength of 150 pm striking an atom and ejecting one of its inner bound electrons with a velocity of 1.5 × 10^7 m/s.
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Explain the significance of the angular momentum quantization of an electron in Bohr's model for the hydrogen atom.
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If the position of an electron is measured within an accuracy of + 0.002 nm, calculate the uncertainty in the momentum of the electron.
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Rank the six electrons based on their quantum numbers in increasing energy order.
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