Which of the following statements is false?
Atoms of , , , , and contain one electron in the 6d subshell and two electrons in the 7s subshell. A 6d0 configuration is produced if the d electron is promoted to a 5f or higher energy orbital. In which of these atoms does changing from a 6d1 to a 6d0 configuration produce the greatest increase in pairing energy?
In the experimentally observed values for the 2p elements, we find that the increase in the for a 2p electron is slightly smaller between and () than between and (). Which of the following is not a reason for the differences in the values?