it is easier to determine the electron configurations for the p - block elements in periods 1, 2, and 3 than…

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\n○ they have a larger number of core electrons.\n○ their electrons are assigned to s and p orbitals only.\n○ their electrons are placed in a higher number of orbitals.\n○ they have more valence electrons available for bonding.

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\n○ they have a larger number of core electrons.\n○ their electrons are assigned to s and p orbitals only.\n○ their electrons are placed in a higher number of orbitals.\n○ they have more valence electrons available for bonding.

Answer

Answer:

B. their electrons are assigned to s and p orbitals only.

Brief Explanation:

Periods 1 - 3 have no d - or f - orbitals. So, electron configuration is simpler as only s and p orbitals are involved for p - block elements in these periods.