CAIE IGCSE Chemistry 2.7.2 Metallic properties from

Practise linking metallic bonding to conductivity, malleability and ductility using mobile electrons and layers of positive ions.

Exam points

explain solid metal conductivity by naming mobile delocalised electrons as charge carriers
link malleability to layers of positive ions sliding while metallic bonding remains intact

[Maximum number: 1]

Iron is a transition element. Potassium is a Group I element.

Transition elements and Group I elements have some similar physical properties.

They can both:
- be hammered into a shape
- conduct electricity
- be stretched into wires.

Describe what happens to the particles in iron when it is hammered into a shape.

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2.7.2—Metallic properties from question 1