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A sample of which radioisotope emits particles having the greatest mass?1) Cs-1372) Fe-533) Fr-2204) H-3

2 Answers

5 votes
3) Fr-220

It emits alpha particles which is the heaviest particle emitted by the radioisotopes listed.
User AlexHalkin
by
7.8k points
7 votes

Answer: Option (#) is the correct answer.

Step-by-step explanation:

Particles emitted by the given radioisotopes are as follows.

  • Cs-137


^(137)_(55)Cs \rightarrow ^(0)_(-1)e + ^(137)_(56)Ba

A beta particle is emitted by Cs-137

  • Fe-53


^(53)_(26)Fe \rightarrow ^(0)_(+1)e + ^(53)_(25)Mn

A positron is emitted by Fe-53.

  • Fr-220


^(220)_(87)Fr \rightarrow ^(4)_(2)He + ^(216)_(85)At

An alpha particle is emitted by Fr-220

  • H-3

[tex]^{3}_{1}H \rightarrow ^{3}_{2}He^{1+} + e^{-}/tex]

Thus, we can conclude that Fr-220 radioisotope emits particles having the greatest mass.

User Ahmed Taher
by
7.7k points
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