Radon gas, 222/86Rn, is formed by a decay.
(a) Write the decay equation.
(b) Ignoring the kinetic energy of the daughter nucleus (it’s so massive), estimate the kinetic energy of the α particle produced.
(c) Estimate the momentum of the alpha and of the daughter nucleus.
(d) Estimate the kinetic energy of the daughter, and show that your approximation in (b) was valid.