Chapter 30.2, Problem 16PP

To determine

To Explain: Nuclear equation for the transmutation of the isotope into isotope $Ra$ by emission of a $\alpha$ particle.

Answer to Problem 16PP

Nuclear equation for the transmutation of the isotope $Th$ into isotope $Ra$ by emission of $\alpha$ particle is $Th\to \text{H}+Ra$ .

Explanation of Solution

Introduction:

Alpha particles or alpha rays generally have two protons and two neutrons bounded together in such a way that the particle is very much similar to helium-4 nucleus.

In given example of conversion of $Th$ in the isotope $Ra$ alpha particles are generated and given out. Thorium isotope $Th$ undergoes transmutation and emits alpha particles and Radium $Ra$ isotope is produced.

The emission of alpha particles is $He$

Thus, the equation for the transmutation is

  $Th\to \text{H}+Ra$

Conclusion:

The reaction is $Th\to \text{H}+Ra$ .