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Question 1: a. The first four ionization energies of an element are approximately: 738 kJ mol-1,...

Question 1:

a. The first four ionization energies of an element are approximately:
738 kJ mol-1, 1450 kJ mol-1, 7.7 x 103 kJ mol-1, and 1.1 x 104 kJ mol-1.
Which family (group) of elements does this element belong? Explain.

b. In a photoelectron spectroscopy experiment the kinetic energy of the ejected electron from
a potassium atom is found to be 5.34 x 10-19 J using a UV source of wavelength 162 nm.
Calculate the ionization energy.

i. It is assumed that this ionization energy corresponds to the valence electron of
potassium in the 4s sublevel. How could you adjust this experiment to be sure that
this is the correct assumption?

Solutions

Expert Solution

queen_honey_blossom answered 2 years ago
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