EASY
AS and A Level
IMPORTANT
Earn 100

Hadrons are made up from quarks.

Which combination of quarks could make up a meson?

(a) dds

(b) ssc

(c) sb

(d) sc

Important Questions on Atomic Structure and Particle Physics

EASY
AS and A Level
IMPORTANT
Explain why the most strongly ionising radiation α -particles is the least penetrating, while the least ionising γ -rays is the most penetrating.
EASY
AS and A Level
IMPORTANT
Before Rutherford's model, scientists believed that the atom was made up of negatively charged electrons embedded in a 'plum pudding' of positive charge that was spread throughout the atom. Explain how the $\alpha$ -particle scattering experiment proved that this old model of the atom was incorrect.
EASY
AS and A Level
IMPORTANT
A nucleus of strontium has a nucleon number of 90 and a proton number of 38 . Describe the structure of this strontium nucleus.
EASY
AS and A Level
IMPORTANT
State the changes that take place in a nucleus when it emits an α -particle and then two β- -particles.
EASY
AS and A Level
IMPORTANT
The nuclide of iodine with a nucleon number of 131 and a proton number 53 emits a β- -particle. Write a nuclear equation for this decay.
EASY
AS and A Level
IMPORTANT

An isotope of carbon C614 emits a β- -particle and changes into an isotope of nitrogen (N).

What are β- -particles?

EASY
AS and A Level
IMPORTANT

An isotope of carbon C614 emits a β- -particle and changes into an isotope of nitrogen (N).

Write a nuclear decay equation for the decay.

EASY
AS and A Level
IMPORTANT

An isotope of carbon C614 emits a β- -particle and changes into an isotope of nitrogen N.

Draw a graph with the y -axis representing nucleon numbers between 10 and 16 and the x -axis representing proton numbers between 4 and 10. On your graph, mark The isotope C614.