DP Chemistry (last assessment 2024)

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Question 22N.2.hl.TZ0.a

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.2.hl.TZ0.a
Level hl Paper 2 Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
22N.2.hl.TZ0.a

Consider the following reaction:

Cu2+ (aq) + Fe (s) → Fe2+ (aq) + Cu (s)

State the ground-state electron configuration for Fe2+.

[1]

Markscheme

1s22s22p63s23p63d6

OR

[Ar]3d6 ✔

Examiners report

Over half the candidates gave the correct electronic structure of the Fe2+ ion, however quite a few did not read the question carefully so gave that of the parent atom and a few gave electron configurations that retained 4s electrons.

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