Bohr model; spectrum of hydrogen atom; wave-particle duality; de Broglie hypothesis; uncertainty principle; quantum mechanical picture of hydrogen atom — energies, quantum numbers, probability density, shapes of s, p and d orbitals; Aufbau principle; Pauli's exclusion principle and Hund's rule.
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Q1 · Atomic Structure · HARD
For a hydrogen-like ion (atomic number Z), the wavelength of the radiation emitted when an electron jumps from n = 4 to n = 2 is 121.5 nm. What is the value of Z?
Q2 · Atomic Structure · MEDIUM
The kinetic energy of an electron in the third Bohr orbit of a hydrogen atom is (where a₀ is the Bohr radius, h is Planck's constant, and m is the electron mass):