1. States of matter

1.1 Solids, liquids and gases

1.2 Diffusion

2. Atoms, elements and compounds

2.1 Elements, compounds and mixtures

2.2 Atomic structure and the Periodic Table

2.3 Isotopes

2.4 Ions and ionic bonds

2.5 Simple molecules and covalent bonds

2.6 Giant covalent structures

2.7 Metallic bonding

3. Stoichiometry

3.1 Formulae

3.2 Relative masses of atoms and molecules

3.3 The mole and the Avogadro constant

4. Electrochemistry

4.1 Electrolysis

4.2 Hydrogen–oxygen fuel cells

5. Chemical energetics

5.1 Exothermic and endothermic reactions

6. Chemical reactions

6.1 Physical and chemical changes

6.2 Rate of reaction

6.3 Reversible reactions and equilibrium

6.4 Redox

7. Acids, bases and salts

7.1 The characteristic properties of acids and bases

7.2 Oxides

7.3 Preparation of salts

8. The Periodic Table

8.1 Arrangement of elements

8.2 Group I properties

8.3 Group VII properties

8.4 Transition elements

8.5 Noble gases

9. Metals

9.1 Properties of metals

9.2 Uses of metals

9.3 Alloys and their properties

9.4 Reactivity series

9.5 Corrosion of metals

9.6 Extraction of metals

10. Chemistry of the environment

10.1 Water

10.2 Fertilisers

10.3 Air quality and climate

11. Organic chemistry

11.1 Formulae, functional groups and terminology

11.2 Naming organic compounds

11.3 Fuels

11.4 Alkanes

11.5 Alkenes

11.6 Alcohols

11.7 Carboxylic acids

11.8 Polymers

12. Experimental techniques and chemical analysis

12.1 Experimental design

12.2 Acid–base titrations

12.3 Chromatography

12.4 Separation and purification

12.5 Identification of ions and gases

IGCSE Chemistry 8.5 Noble gases Question Bank

8.5.1—Group VIII noble gases as unreactive

[Maximum number: 1]

Gases are separated from liquid air by fractional distillation. The boiling points of four gases are shown.

Which gas is both monatomic and a liquid at $-200^{\circ} \mathrm{C}$ ?

gas

boiling

point $/{ }^{\circ} \mathrm{C}$

argon

-186

helium

-269

neon

-246

nitrogen

-196

(a)

The symbols of the elements in Period 2 of the Periodic Table are shown.

Li Be B C N O F Ne

For each of the following, give the symbol of an element from Period 2 which matches the description.

Each element may be used once, more than once or not at all.
Which element:

[ 1 ]

(i)

is a monoatomic gas

[ 1 ]

[Maximum number: 1]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Answer the following questions about these elements.
Each element may be used once, more than once or not at all.
Write the symbol of an element which:

(a)

does not form an oxide

[ 1 ]

[Maximum number: 1]

The symbols of the elements of Period 3 of the Periodic Table are shown.

Answer the following questions about these elements.
Each symbol may be used once, more than once or not at all.
Write the symbol of the element which:

(a)

is the least reactive in the period [1]

[ 1 ]

[Maximum number: 1]

The following are the symbols and formulae of some elements and compounds.

Answer the following questions using only the elements or compounds in the list. Each element or compound may be used once, more than once or not at all.

State which element or compound is used:

(a)

as an inert atmosphere in lamps [1]

[ 1 ]

[Maximum number: 1]

A list of gases is shown.
ammonia
carbon dioxide
carbon monoxide
ethene
fluorine
oxygen
sulfur dioxide
xenon

Answer the following questions using only the gases from the list. Each gas may be used once, more than once or not at all.

Give the name of the gas that:

(a)

is inert

[ 1 ]

(a)

State one gas which:

[ 1 ]

(i)

has monatomic particles

[ 1 ]

(a)

For each of the following, give the name of an element from Period 2 (lithium to neon), which matches the description.
Elements may be used once, more than once or not at all.

[ 1 ]

(i)

an element which is gaseous at room temperature and pressure

[ 1 ]

[Maximum number: 1]

This question is about gases.

(a)

The following substances are gases at room temperature.

Identify, by letter:

[ 1 ]

(i)

a gas which is used as an inert atmosphere in lamps [1]

[ 1 ]

[Maximum number: 1]

Gases are separated from liquid air by fractional distillation.
The boiling points of four gases are shown.
Which gas is both monoatomic and a liquid at $-200^{\circ} \mathrm{C}$ ?

gas

boiling

point $/{ }^{\circ} \mathrm{C}$

argon

-186

helium

-269

neon

-246

nitrogen

-196

0 selected

Question 1

Question 1

Question 1(b)

Question 1(b)(v)

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Question 1(f)

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Question 1(a)(iv)

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Question 1(a)(i)

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Question 1(a)(iv)

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