In a plot of electron affinity versus atomic number for the first three periods
CHEMISTRY · Subjective · A Level · Chemistry · Periodicity and periodic trends · Periodicity and periodic trends
Problem
In a plot of electron affinity versus atomic number for the first three periods, fluorine (Z = 9) and chlorine (Z = 17) have highly negative values, while neon (Z = 10) and argon (Z = 18) have small positive values. Describe how electron configuration accounts for the difference between these two sets of elements.