Question
Asked Oct 17, 2019
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Complete and balance the following equations by supplying the missing particles or energy ray.
Identify the type of radioactive decay for each reaction.
1.
235
1
91
1
232
232
U n
Kr +
3 n
Th
Pa +
92
0
36
0
90
91
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Complete and balance the following equations by supplying the missing particles or energy ray. Identify the type of radioactive decay for each reaction. 1. 235 1 91 1 232 232 U n Kr + 3 n Th Pa + 92 0 36 0 90 91

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Expert Answer

Step 1

The reactions involving formation of new nucleus with emission of some radiation along with it from an original nucleus are known as nuclear reactions.

To write a nuclear reaction the chemical equation for the reaction must be balanced that is the sum of atomic number and mass number on both the side should be equal.

Step 2

If protactinium-232 is formed by decay of thorium-232 then to write a balanced nuclear equation following steps should be followed which are given as follows:

  1. Write the incomplete reaction showing original nucleus with atomic number and mass number and the particle emitted on the left and right side respectively as follows:
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232 91 232TH "Ра + ? 90

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Step 3

2. Determine atomic number and mass number or particle emitted on right side as follows:

Atomic number: The sum of atomic number on both side must be equal in a chemical reaction. Therefore, charge of new particle will be calculated by simply subtracting the atomic number of protactinium (91) from atomic number of thorium (90) as follows:

90 - 91 =...

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232 232TH Th -»Pa + e 91 90

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