Chapter 14: properties

Question 1

pure metals: soft

Answer 1

• metals are packed in a regular arrangement
• layers of atoms slide over 1 another easily when a force is applied

Question 2

pure metals: corrode easily

Answer 2

• metals may react w/ air & water to corrode easily

Question 3

alloys: stronger & harder

Answer 3

• atoms of diff. elements have diff. sizes
• regular arrangement of metal atoms is disrupted
• difficult for atoms to slide over 1 another when a force is applied

Question 4

alloys: resistant to corrosion

Answer 4

• alloys are more resistant to corrosion
  ( e.g. stainless steel, cupronickel )

Question 5

alloys: appearance

Answer 5

• alloys improve the appearance of metals
  ( e.g. pewter )