Topic Menu

Cyber-chess a chess instruction site

A level: Radioactivity Questions

 

Q17. The first artificially produced isotope, phosphorus-30, was formed by bombarding an aluminium-27 isotope,with an α particle.

(a) Complete the following nuclear equation by identifying the missing particle.

(1 mark)

(b) For the reaction to take place the α particle must come within a distance, d, from the centre of the aluminium nucleus.

Calculate 'd' if the nuclear reaction occurs when the α particle is given an initial kinetic energy of at least 2.18 × 10–12 J.

The electrostatic potential energy between two point charges Q1 and Q2 is equal to:

where

r is the separation of the charges and

ε0 is the permittivity of free space.

(3 marks)

(Total 4 marks)