Why does lithium have a larger first ionization energy than sodium? b. the difference between the third and fourth ionization energies of scandium is much larger than the difference between the third and fourth ionization energies of titanium. Why?
Please explain in detail.© BrainMass Inc. brainmass.com September 27, 2022, 4:34 pm ad1c9bdddf
SOLUTION This solution is FREE courtesy of BrainMass!
Lithium's valence electrons are closer to the nucleus than the valence electrons of Sodium. Hence it is more difficult to remove a valence electron from Li resulting in a greater ionization energy.
For Scandium, removal of 3rd electron results in a completely filled shell. Removing an electron from this will result in an unstable unfilled shell. hence it takes a lot of energy to remove the 4th electron.
For Titanium, removing the 3rd electron does not result in a filled shell. In fact, removing the 4th electron does and hence the difference between 3rd and 4th ionization energies is not great for Ti.© BrainMass Inc. brainmass.com September 27, 2022, 4:34 pm ad1c9bdddf>