a) Calculate the ionisation energy of rubidium per atom, if light of wavelength ) Calculate the ionisation energy of rubidium per atom, if light of wavelength 5.84 108 m produces electrons with a speed of
[Hint: Assume that the threshold frequency refers to the frequency corresponding to the ionisation energy.]
We can solve this problem using Einstein’s photoelectric equation: \[ E = \phi + K.E. \] where: - \( E \) is the energy of the incident photon, - \( \phi \) is the work function (ionization energy per atom), - \( K.E. \) is the kinetic energy of the _____ ____ ___ _____ ___ ____ _________.
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b) Explain, using hybridization theory and diagram, the structure of allene,
b) What is the essential condition for a molecule to be microwave active? Classify the following molecules as microwave active or microwave inactive and state the reason in each case.
[Hint: is a linear molecule and one of the nitrogen atoms is at the centre.]
b) Explain the need to introduce normalization constant and, complex conjugate of wave function.
a) Calculate the ionisation energy of rubidium per atom, if light of wavelength ) Calculate the ionisation energy of rubidium per atom, if light of wavelength 5.84 108 m produces electrons with a speed of
[Hint: Assume that the threshold frequency refers to the frequency corresponding to the ionisation energy.]
b) Explain one application each for the study of paramagnetic and diamagnetic substances using magnetic susceptibility measurements. Comment on their dependence of these values of temperature.
Using steps 1 to 5 given in Sec. 3.7 of Unit 3, draw the Lewis structures of and
Using VSEPR theory, predict their shapes.
ion has less stable arrangement that
molecule. Explain using molecular orbital theory.