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Atomic structure

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Question 7
63%

Which of the following represents the ground-state electron configuration of a stable transition metal ion that contains exactly three unpaired electrons?

A

[Ar]4s23d3\text{[Ar]} 4\text{s}^2 3\text{d}^3[Ar]4s23d3

B

[Ar]3d3\text{[Ar]} 3\text{d}^3[Ar]3d3

C

[Ar]4s13d2\text{[Ar]} 4\text{s}^1 3\text{d}^2[Ar]4s13d2

D

[Ar]3d6\text{[Ar]} 3\text{d}^6[Ar]3d6

Markscheme

Atomic structure Questions

  1. A Level
  2. /Chemistry
  3. /Atomic structure

33 exam-style questions on AQA A Level Chemistry Atomic structure, covering Fundamental particles, Mass number and isotopes, and Electron configuration. Each one has a worked solution and a mark scheme showing where the marks go.

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