Unlike the elements in groups 1A and 2A, those in group 3A do not show a regular
Chapter 8, Problem 121(choose chapter or problem)
Unlike the elements in groups 1A and 2A, those in group 3A do not show a regular decrease in fi rst ionization energy in going down the column. Explain the irregularities.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer