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Date May 2016 Marks available 2 Reference code 16M.3.sl.TZ0.5
Level SL Paper 3 Time zone TZ0
Command term Describe Question number 5 Adapted from N/A

Question

Describe how the structures of ceramics differ from those of metals.

Markscheme

ceramics have «giant» ionic/covalent/ionic AND covalent structures

metals contain lattice of positive ions/cations in sea of delocalized electrons

Accept [1 max] for “ionic/covalent/ionic and covalent bonds in ceramics AND metallic bonds in metals”. 

Accept suitable diagram for M2.

 

Examiners report

[N/A]

Syllabus sections

Options » A: Materials » A.1 Materials science introduction

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