d and f BLOCK ELEMENTS

Why is Ti⁴⁺ more stable than Ti²⁺ or Ti³⁺?

• It has more d electrons
• It achieves a noble gas configuration
• It is smaller in size
• It has a higher charge density

What is the electronic configuration of Sc³⁺?

• [Ar] 3d¹
• [Ar]
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹

Which statement best describes the difference in oxidation state variability between transition and non-transition elements?

• Both differ by 1
• Transition elements' states differ by 1, non-transition by 2
• Both differ by 2
• There is no difference

Which of the following complex ions would most likely feature the metal in a low oxidation state due to ligand properties?

• [Fe(CN)₆]³⁻
• [Cr(H₂O)₆]³⁺
• [Ni(CO)₄]
• [MnO₄]⁻

What is the oxidation state of Vanadium in VO₂⁺?

• +3
• +4
• +5
• +6