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Question 18N.2.HL.TZ0.5a.iii

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Date November 2018 Marks available [Maximum mark: 2] Reference code 18N.2.HL.TZ0.5a.iii
Level HL Paper 2 Time zone TZ0
Command term Explain Question number a.iii Adapted from N/A
a.iii.
[Maximum mark: 2]
18N.2.HL.TZ0.5a.iii

The diagram shows the position of the principal lines in the visible spectrum of atomic hydrogen and some of the corresponding energy levels of the hydrogen atom.

(a.iii)

Explain your answer to (a)(ii).

[2]

Markscheme

Difference in energy levels is equal to the energy of the photon ✔

Downward arrow as energy is lost by hydrogen/energy is given out in the photon/the electron falls from a higher energy level to a lower one ✔

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