DP Chemistry (first assessment 2025)

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Question 21M.1A.SL.TZ2.6

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.6
Level SL Paper 1A Time zone TZ2
Command term State Question number 6 Adapted from N/A
6.
[Maximum mark: 1]
21M.1A.SL.TZ2.6

How are emission spectra formed?

A.  Photons are absorbed when promoted electrons return to a lower energy level.

B.  Photons are absorbed when electrons are promoted to a higher energy level.

C.  Photons are emitted when electrons are promoted to a higher energy level.

D.  Photons are emitted when promoted electrons return to a lower energy level.

[1]

Markscheme

D

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