(a)
Interpretation:
An equation for the decomposition of Iodine-131 has to be written.
Concept introduction:
Balancing
- The sum of the mass numbers of the reactants should be equal to the sum of mass numbers of the products in the reaction.
- The sum of
atomic numbers (or the atomic charge) of the reactants should be equal to the sum of atomic numbers (or the atomic charge) of the products in the reaction.
(b)
Interpretation:
The time required for the activity of Idodine-131 to decrease to 35% of its original value has to be calculated.
Concept Introduction:
Radiocarbon dating: The dynamic equilibrium exists in all living organism by exhaling or inhaling, maintain the same ratio of
Half-life period: The time required to reduce to half of its initial value.
Formula used to calculate half-life:
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