Unit 9 - Metals

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

Reason for electrical conductivity in metals

Back (Answer)

Presence of delocalized electrons which can conduct electricity

Front (Question)

Reason for thermal conductivity in metals

Back (Answer)

High density makes heat easier to pass through particles via vibrations

Front (Question)

Reason for high melting and boiling points in metals

Back (Answer)

Strong forces of attraction need high temperatures to break bonds

Front (Question)

Malleability

Back (Answer)

The ability to shape a substance

Front (Question)

Ductility

Back (Answer)

The ability to pull a substance into stretched out wires

Front (Question)

Reason for malleability and ductility in metals

Back (Answer)

Metals are arranged in layers with delocalized electrons that allow them to slide past each other easily

Front (Question)

Reactions with metals and dilute acids

Back (Answer)

Metal + Acid –> Salt + Hydrogen

Front (Question)

Reactions with metals and water

Back (Answer)

Metal + Water –> Metal hydroxide + Hydrogen

Front (Question)

Reactions with metal and oxygen

Back (Answer)

Metal + Oxygen –> Metal oxide

#10

Front (Question)

Aluminum features

Back (Answer)

• Exceptionally low density but relatively strong • Conducts electricity • Corrosion resistant

#11

Front (Question)

Uses of aluminum

Back (Answer)

• Aircrafts - strong but low density • Overhead cables - good conductor, low density • Storing food - corrosion resistant

#12

Front (Question)

Uses of copper

Back (Answer)

• Wiring - high conductivity, very ductile, flexible

#13

Front (Question)

Alloys

Back (Answer)

Mixture of a metal and another element - tend to be stronger and harder than pure metals

#14

Front (Question)

Bronze composition

Back (Answer)

Tin and copper

#15

Front (Question)

Brass composition

Back (Answer)

Copper and zinc - causes it to be corrosion resistant and gold color

#16

Front (Question)

Steel composition

Back (Answer)

Group of alloys made with iron

#17

Front (Question)

Uses of steel

Back (Answer)

• Car engines • Drill bits • Cutting tools

#18

Front (Question)

Stainless steel composition

Back (Answer)

• Iron mixed with carbon and other metals e.g. chromium and nickel - protects rusting

#19

Front (Question)

Uses of stainless steel

Back (Answer)

• Cutlery • Specialist equipment that process corrosive substances in chemical industry

#20

Front (Question)

Reasons for alloys’ lack of malleability and ductility

Back (Answer)

The admixture of particles of different sized causes the layers to not be able to slide/ interlocks them

#21

Front (Question)

Order of reactivity series

Back (Answer)

1.Potassium - K 2.Sodium - Na 3.Calcium - Ca 4.Magnesium - Mg 5.Aluminum - Al 6.Carbon - C 7.Zinc - Zn 8.Iron - Fe 9.Hydrogen - H 10.Copper - Cu 11.Silver - Ag 12.Gold - Au

#22

Front (Question)

Elements of the reactivity series and their reaction with water

Back (Answer)

• Aluminum and below don’t react • Magnesium only reacts with steam • Calcium reacts strongly • Sodium reacts vigorously/violently • Potassium reacts the most vigorous/violent

#23

Front (Question)

Elements of the reactivity series and their reactions with dilute HCl

Back (Answer)

• Magnesium - strong, forms bubbles quickly • Zinc - bubbles form slowly -Iron - Very slow, must be powdered iron • Rest don’t react

#24

Front (Question)

Displacement reaction

Back (Answer)

When a more reactive element takes the place of a less reactive element in a compound