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IB Chemistry HL 2.1 The Ionic Model Questions

Practise IB Chemistry HL 2.1 with evidence-led questions on particulate models, bonding, structure and material properties.

Syllabus
First assessment 2025
Course
Chemistry HL
Level
HL

Exam points

  • Predict ion formation and electron configurations from an atom’s position and valence electrons.
  • Construct neutral ionic formulae by balancing the charges of cations and anions.
  • Explain ionic structure and properties using electrostatic attraction, ion size, charge and ion mobility.

Covered syllabus points

2.1.1—Ion formation2.1.2—Ionic bonding2.1.3—Ionic compounds

Question 1

[Maximum number: 1]

Titanium and vanadium are consecutive elements in the first transition metal series.

State the type of bonding in potassium chloride which melts at 1043 K .

Question 2

[Maximum number: 3]

Magnesium is a group 2 metal which exists as a number of isotopes and forms many compounds.

Question (a)

(a)

In addition to magnesium oxide, magnesium forms another compound when burned in air. Suggest the formula of this compound.

[ 1 ]

Question (b)

(b)

Describe the structure and bonding in solid magnesium oxide.

[ 2 ]
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