DP Chemistry (last assessment 2024)

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Question 21N.2.hl.TZ0.b(ii)

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.2.hl.TZ0.b(ii)
Level hl Paper 2 Time zone TZ0
Command term State Question number b(ii) Adapted from N/A
b(ii).
[Maximum mark: 1]
21N.2.hl.TZ0.b(ii)

Fast moving helium nuclei (4He2+) were fired at a thin piece of gold foil with most passing undeflected but a few deviating largely from their path. The diagram illustrates this historic experiment.

Figure from PPLATO / FLAP (Flexible Learning Approach To Physics), http://www.met.reading.ac.uk/pplato2/h-flap/
phys8_1.html#top 1996 The Open University and The University of Reading.

State the electron configuration of copper.

[1]

Markscheme

1s22s22p63s23p64s13d10
OR
[Ar] 4s13d10 ✔


Accept configuration with 3d before 4s.

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