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CAIE IGCSE Chemistry 8.1.6 Trends in groups, given information

CAIE IGCSE Chemistry 8.1.6 Trends in groups, given information
Cambridge IGCSE Chemistry 0620 syllabus for exams in 2026, 2027 and 20282026–2028

Practise reading supplied group data to identify trends in reactivity, density, melting point and metallic character down groups.

How this is tested

  • interpret tables to compare boiling point, density or melting point down a group
  • apply given Group I trends to Group II reactions with water, acids or oxygen
  • distinguish opposite reactivity trends down Group II and Group VII from displacement evidence

Question 23

[Maximum number: 1]

The table gives some properties of Group IV elements.

Table for Question 23 — CAIE IGCSE Chemistry

Which row describes the properties of silicon?

 density g/cm3\frac{\text { density }}{\mathrm{g} / \mathrm{cm}^{3}}

boiling point

/∘C/^{\circ} \mathrm{C}

2.3

3265

3.1

1997

6.2

2920

24.6

11682