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

Answer

Brief Explanations:

In periods 1, 2, and 3 of p - block elements, electrons are only in s and p orbitals, making electron - configuration determination simpler compared to other p - block elements with more complex orbital arrangements.

Answer:

their electrons are assigned to s and p orbitals only.