Question

Elements in the s- or p-blocks generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number.

a) True
b) False

Answer 1

False. Elements in the s- or p-blocks generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number.

Step-by-step explanation:

False. Elements in the s- or p-blocks generally have only one common oxidation number, while d-block elements can have more than one possible oxidation number. This is because the d-block elements have incomplete inner electron shells, allowing them to gain or lose different numbers of electrons to achieve a stable configuration. For example, iron can form both Fe2+ and Fe3+ ions, while lead can form Pb2+ and Pb4+ ions.