Question

Show that when a radioactive element emits 1 alpha and two beta particles the daughter nucleus is an isotope of the parent nucleus. ​

Answer 1

Answer:

In alpha decay, decreases 4 unit mass number and 2 unit atomic number.

In beta decay, increases one unit atomic number but mass will remain same.

So,

n

m

X→

α

n−2

m−4

Y→

2β

n−2+2

m−4

Z or

n

m−4

Z

Answer 2

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