past paper notes- radioactivity

Question 1

explain why the emitted B- particles have a range of energies? /2

Answer 1

• energy is shared with another particle
• such as antineutrino

Question 2

N= m/ a x u
N= number of nuclei
m= mass
a= atomic number
u= unified atomic mass

Question 3

P = A x E
P = power
A= activity
E= energy