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## Homework Statement:

- strontium 90 (Sr) is a radioactive substance, which has 52 neutrons per atom. It decays to Yttrium 90(yt) which has 51 neutrons in each atom. write a nuclear equation to show the decay of strontium 90 to Yttrium 90. Include the mass number and atomic numbers in your equation

## Relevant Equations:

- N/a

$$Sr\frac{90}{52}\rightarrow Yt\frac{90}{51}+e\frac{0}{-1}$$ is this correct?