(a) A thorium isotope 23390Th undergoes an α - decay and changes to r – InterviewSolution

1.	(a) A thorium isotope 23390Th undergoes an α - decay and changes to radium. What are the atomic number and mass number of radium produced? (b) If radium undergoes further disintegration and emits two β - particles, represent the reaction in the form of an equation. [3 MARKS]
Answer» (a) A thorium isotope $_{90}^{233} T h$ undergoes an $α$ - decay and changes to radium. What are the atomic number and mass number of radium produced? (b) If radium undergoes further disintegration and emits two $β$ - particles, represent the reaction in the form of an equation. [3 MARKS]

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