DP Chemistry (first assessment 2025)

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Question 21M.2.SL.TZ1.1c(i)

Date	May 2021	Marks available	[Maximum mark: 2]	Reference code	21M.2.SL.TZ1.1c(i)
Level	SL	Paper	2	Time zone	TZ1
Command term	Describe	Question number	c(i)	Adapted from	N/A

c(i).

[Maximum mark: 2]

21M.2.SL.TZ1.1c(i)

(c(i))

Describe the bonding in this type of solid.

[2]

Markscheme

electrostatic attraction ✔

between oppositely charged ions/between Fe²⁺ and S²⁻ ✔

Syllabus sections

Structure 2. Models of bonding and structure » Structure 2.1—The ionic model » Structure 2.1.1—When metal atoms lose electrons, they form positive ions called cations. When non-metal atoms gain electrons, they form negative ions called anions. Predict the charge of an ion from the electron configuration of the atom.