Formulae from sheet, R is also given, but it may be easier to remember 13.6 eV for hydrogen.
Schrodinger, note momentum = p = mv. So when v = zero the wavelength goes to infinity.
2006
(b) You have gathered, processed and analysed information related to the development of atomic theory.
(i) Describe how you ensured that the information you gathered was reliable.
(ii) The atomic theory changed as a result of the contributions of both Heisenberg and Pauli.
Analyse how the work of both scientists modified the atomic theory at that time.
2002
(a) (i) Describe Davisson and Germer’s experiment that confirmed thede Broglie hypothesis of wave-particle duality.
(ii) Explain the stability of the electron orbits in the Bohr atom, using de Broglie’s hypothesis.
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