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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Ions and ionic bonds

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Ions and ionic bonds

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Paper 3Theory (Core)2 marks

Illustrate the ionic bonding process between lithium and fluorine.

Diagram Description

Dot-and-Cross Diagram

Draw a dot-and-cross diagram to show the formation of lithium fluoride (LiF).

  1. a

    Describe the electron transfer that occurs when lithium reacts with fluorine.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Ions and ionic bonds

Paper 3Theory (Core)1 marks

Description

Ionic Bonding

Sodium (Na) is in Group I and chlorine (Cl) is in Group VII. Sodium loses one electron to form Na+, and chlorine gains one electron to form Cl-.

  1. a

    State the charge of the sodium ion formed during this process.

    Aim for approximately 1 distinct marking point.

    [1]