Question Detail

CHM 102 Sblock elements Objective Question

Question

Why do metals in the lower half of Group 1 tend to form more complicated oxides (peroxides and superoxides)?
Options
A Because their metal ions are small and have a high charge density.
B Because the formation of these oxides releases more energy, making the system more energetically stable.
Correct Answer
C Because they have a higher electronegativity.
D Because they are less reactive than the top elements.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 9 explains, 'The formation of more complicated oxides (i.e. peroxides and superoxides) from the metals releases more energy and makes the system more energetically stable.' It also mentions these metals have big ions and low charge density.

Hint

Consider the energetic favorability for the formation of these compounds.

Question Info