Fill in the blanks in the partial decay series.

Solution 66P:

Here, we are going to fill in the given blanks.

Step1:

Nuclear equations show the changes in the atomic numbers of the nuclides (the number of protons) and the changes in their mass numbers (the sum of the numbers of protons and neutrons). The following table gives the changes that occurs due to nuclear decay or emissions.

In each of the equations in the partial decay series, the sum of the superscripts (mass numbers, A) for the reactants must be equal to the sum of the superscripts for the products. Similarly, the sum of the subscripts (atomic numbers, Z) for the reactants must be equal to the sum of the subscripts for the products.

Step2:

Ra → Ac + e

Ac → Fr + He

Fr → At + He

At → Bi + He

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