Describe the make-up and arrangement of a neutral atom of sodium-24.
State how the nucleus of sodium-24 differs in composition from that of sodium-23.
State the name of the particle that is the same as a beta-particle.
Complete the nuclide equation for sodium-24 emitting a beta-particle ($\beta$): $^{24}_{11}\text{Na} \rightarrow \; \beta + \; \text{Mg}$
State what gamma-rays are.
On Fig. 8.1, draw the path of the beta-particles in the electric field between the charged plates.
On Fig. 8.1, draw the path taken by the gamma-rays in the electric field between the charged plates.
Explain why the path followed by the beta-particles is different from the path followed by the gamma-rays.
Explain one reason why a half-life of $15$ hours makes the isotope suitable for use inside the human body.