It is easier to determine the electron configurations for the p-block elements in periods 1, 2, and 3 than to determine the electron configurations for the rest of the p-block elements in the periodic table because
Answer
A
they have a larger number of core electrons.
B
their electrons are assigned to s and p orbitals only.
C
their electrons are placed in a higher number of orbitals.
D
they have more valence electrons available for bonding.