plumiTransition elements and their properties: OCR A‑Level Chemistry A questions
OCR A-Level Chemistry A past-paper questions on 5.3.1.1 Transition elements and their properties, 2016–2025, with mark schemes and examiner’s reports where available.
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Q21(a)(i)
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Open the full PDFYour answerQ18(b)(i)
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All 11 questions on Transition elements and their properties, as a list
- June 2025, Paper 1, Q21(a)(i) (2 marks): Complete the electron configuration of an Fe atom: 1s2 a Cu2+ ion: 1s2 [2]
- June 2024, Paper 1, Q22(a) (2 marks): Iron is in the d block of the periodic table and contains s, p and d orbitals. • Draw diagrams to show the shapes of an s orbital and a p orbital. Complete the
- June 2023, Paper 1, Q22(a) (6 marks): This question is about the d-block elements in Period 4 of the periodic table (Sc to Zn). (a)* Explain, with examples from Period 4, what is meant by the terms
- June 2023, Paper 3, Q1(d) (2 marks): The two elements with atoms containing five unpaired electrons. [2]
- June 2022, Paper 1, Q15 (1 mark): Which ion(s) contain(s) one or more unpaired electrons? Mn3+ 1 V3+ 2 Cu+ 3 A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1]
- November 2021, Paper 1, Q17(a) (4 marks): Most d-block elements are also classified as transition elements. Explain why scandium and zinc are classified as d-block elements but are not also transition e
- November 2020, Paper 1, Q5 (1 mark): Which statement about elements in the d block of Period 4 of the periodic table is correct? Cr atoms have the electron configuration: 1s22s22p63s23p63d54s1. A C
- June 2019, Paper 1, Q14 (1 mark): Which property/properties is/are correct for a transition element? 1 The element has atoms with a partially filled d sub-shell. 2 The existence of more than one
- June 2019, Paper 1, Q18(b)(i) (1 mark): Complete the electron configuration of a V3+ ion. 1s2 [1]
- June 2018, Paper 1, Q21(a) (2 marks): Complete the electron configuration of a Ni atom: 1s2 a Ni2+ ion: 1s2 [2]
- June 2017, Paper 1, Q15 (1 mark): Which electron configuration(s) is/are correct? Cr atom: 1s22s22p63s23p63d54s1 1 Cu atom: 1s22s22p63s23p63d104s1 2 Fe2+ ion: 1s22s22p63s23p63d54s1 3 A 1, 2 and
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