An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons.
2 answers:
Answer: The atom undergoes alpha decay.
Explanation: An atom has 84 protons and 86 neutrons initially. When this atom undergoes a reaction the product obtained has 82 protons and 84 neutrons.
As the product obtained has 2 protons less and 2 neutrons less which means that the mass number is decreased by 4 units and atomic number is reduced by 2 units.
The atom undergoes an alpha-decay because in this decay the particle emitted is alpha particle which has an atomic number of 2 and atomic mass of 4 units.
Equation follows:
The atom which is undergoing alpha decay is Polonium (Po) and the product formed is Lead (Pb).
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