Question detail

Which of the following best explains the variable oxidation states of transition metals?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Transition metals (A-level only)

Question

A. They can lose different numbers of electrons from their s and d orbitals.
B. They can only lose electrons from their d orbitals.
C. They can only gain electrons to form positive ions.
D. They have fixed oxidation states due to their electron configuration.

Answer

They can lose different numbers of electrons from their s and d orbitals.

Explanation

Transition metals exhibit variable oxidation states because they can lose different numbers of electrons from both their s and d orbitals, allowing for a range of oxidation states.

Common mistake

Misunderstanding Variable Oxidation States

Students often confuse the oxidation states of transition metals, thinking they can only exist in one state rather than multiple states.

To clarify, remember that transition metals can exhibit variable oxidation states due to the involvement of d electrons in bonding. For example, iron can exist in +2 and +3 oxidation states. Always refer to the specific metal and its electron configuration to determine possible oxidation states.

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