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
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.