C2.3.3 - Bulk Properties Of Materials Flashcards Preview

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Flashcards in C2.3.3 - Bulk Properties Of Materials Deck (13)
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1

What does 'brittle' mean?

Hard but cracks or breaks under force

2

What does 'malleable' mean?

Something that can change shape without breaking or cracking

3

Are metals malleable or brittle?

Malleable

4

What happens to metal ions when an external force is applied to them?

The layers of metal ions slide over each other

5

Why are no bonds broken when an external force is applied to a metal?

The delocalised electrons are already free to move

6

What differences are there between brittle substance particles and malleable substance particles?

The particles in a malleable substances can change their positions in their specific structure easier

7

What can happen if a large enough force is applied to a giant covalent structure?

Many covalent bonds may break at once and cause the substance to snap

8

How strong are the intermolecular forces that attract simple and polymer molecules?

Weak (easily breakable)

9

If a solid is easily breakable and a lattice, what word would you use to describe it?

Brittle

10

How can a substance conduct electricity?

If it has charged particles that are free to move

11

In which states can metals conduct electricity?

Solid and Liquid

12

Why can simple molecules, most polymer molecules and giant covalent structures not conduct electricity?

They do not have delocalised electrons

13

When can ionic compounds conduct electricity?

When molten or in solution