Which Is True Concerning the Difference Between Second-Row and Third-Row

Multiple Choice

Which is true concerning the difference between second-row and third-row main group nonmetals?

A) Third-row nonmetals react readily with acids, while second-row nonmetals are mostly unreactive towards acids.
B) Third-row hydrides tend to be more acidic than second-row hydrides.
C) Third-row oxides tend to be less basic than second-row oxides.
D) In their elemental forms, third-row nonmetals are comprised of molecules, while second-row nonmetals are comprised of individual atoms.
E) Atoms of third-row nonmetals may have high oxidation numbers, while atoms of second-row nonmetals may only have negative oxidation numbers.