Group 0 Practice Questions

Question 1

2 marks

Figure 1 shows part of a periodic table. The letters W, X, Y and Z are not the symbols of the elements.

(a)

Give the letter of the element that is a noble gas.

/ 1

(b)

State the number of electrons in the outer shell of an atom of element Y.

/ 1

Question 2

2 marks

Some rooms containing computer servers are fitted with a fire-protection system. If a fire starts, the system floods the room with argon gas and the fire goes out.

Give two properties of argon that make it suitable for this use.

/ 2

Question 0

3 marks

Figure 2 shows the electronic structure of an atom of neon.

(a)

Write the electronic configuration of an atom of neon.

/ 1

(b)

Explain, using Figure 2, why neon does not react with other elements.

/ 2

Question 0

4 marks

The table shows the boiling point and the density of four noble gases.

Noble gas	Boiling point in $°C$	Density in $\text{g/dm}^3$
helium	$-269$	$0.17$
neon	$-246$	$0.84$
argon	$-186$	$1.66$
krypton	$-153$	$3.48$

(a)

Describe the trend in boiling point of the noble gases going down Group 0.

/ 1

(b)

Describe the trend in density of the noble gases going down Group 0.

/ 1

(c)

Xenon is the noble gas below krypton in Group 0.

Predict the boiling point of xenon. Justify your prediction.

/ 2

Question 0

4 marks

Noble gases are used in a number of different ways.

(a)

In a filament light bulb, an electric current passes through a thin metal wire and heats it until it glows.

Explain why the bulb is filled with argon rather than with air.

/ 2

(b)

Airships are large aircraft that float in the air because they are filled with a gas. Modern airships are filled with helium, although hydrogen is less dense than helium.

Explain, using two properties of helium, why helium is used in airships.

/ 2

Question 0

6 marks

Radon is the noble gas below xenon in Group 0.

The table shows information about five noble gases, measured at the same temperature and pressure.

Noble gas	Relative atomic mass	Boiling point in $°C$	Density in $\text{g/dm}^3$
helium	$4$	$-269$	$0.18$
neon	$20$	$-246$	$0.90$
argon	$40$	$-186$	$1.78$
krypton	$84$	$-153$	$3.75$
xenon	$131$	$-108$	$5.90$

The relative atomic mass of radon is $222$ .

(a)

State why radon is expected to be chemically inert.

/ 1

(b)

Predict the boiling point of radon. Justify your prediction using the data in the table.

/ 2

(c)

Predict the density of radon at the same temperature and pressure.

Show clearly how you used the data in the table to obtain your answer.

/ 3

Atomic Structure

States of Matter & Mixtures

Chemical changes

Extracting metals & equilibria

Separate Chemistry 1

Groups in the periodic table

Rates of reaction & energy changes

Fuels & Earth science

Separate Chemistry 2

Question 1

Question 2

Question 0

Question 0

Question 0

Question 0