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When polonium 210 emits an alpha particle the child isotope has an atomic mass of

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Answer:

The child isotope has an atomic mass of 206.

Step-by-step explanation:

Isotope are element that have the same number of protons but different number of neutrons i.e they have the same atomic number but different mass number. All isotopes generally have a short half life, which is the time required for individual element to decay to half of its initial size.

An alpha particle has an atomic number of 2 and mass number of 4. So that alpha particle emission by polonium 210 yield a child isotope of lead with atomic mass of 206.

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