Basics

Question 1

How to produce metal?

Answer 1

Less reactive than Carbon- Blast Furnace

More reactive than Carbon- Electrolysis

Question 2

How does a grain structure form?

Answer 2

Individual crystals form and expand outwards until they converge

Question 3

How do metas conduct heat and electricity?

Answer 3

Sea of delocalised electrons move around transfering heat and electricity

Question 4

Why are metals strong/tough?

Answer 4

Structure allows layers of metal ions to slide over each other

Question 5

Why do metals have high melting points?

Answer 5

Strong attraction between metal ions and electrons

Question 6

Why are properties different in different elements?

Answer 6

Different no. of electrons in outer shells

Question 7

How to improve properties of pure metals?

Answer 7

Alloying

Question 8

What are alloys?

Answer 8

A combination of metal and at least one other element

Question 9

What are the types of alloys?

Answer 9

1. Solid solution of elements (single phase)
2. Mixture of metallic phases (2 or more solutions)

Question 10

What is a phase?

Answer 10

Any part of a material with a distinct crystal structure and/or chemical composition

Question 11

Why is Steel stronger than Iron?

Answer 11

The atoms in Iron can slide past each other easily as they are arranged in layers.

Atoms in Steel are different sizes distorting Irons regular structure preventing easy slipping