Question Detail

CHM 102 Sblock elements Objective Question
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Question

Why do metals in the lower half of Group 1 tend to form more complicated oxides (peroxides and superoxides) compared to simple oxides?
Options
A Their metal ions are small and have high charge density.
B The formation of simple oxides releases less energy.
C Their metal ions are big and have a low charge density, making more complicated oxides energetically stable.
Correct Answer
D They are less reactive than the metals at the top of the group.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 9 explains: 'This is true for the metals in the lower half of the group where the metal ions are big and have a low charge density.' This allows the formation of more complicated oxides to release more energy, making the system more energetically stable.

Hint

Consider the effect of ion size and charge density on the stability of different oxide forms.

Question Info

Course: CHM 102
Topic: Sblock elements
Type: Objective
Difficulty: Not specified
Question 1782 of 1999
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