The balanced neclear equation for alpha emission will be:
[tex]88Ra^2^2^3 --- > 86Rn^2^1^9 + 2He^4[/tex]
What is Radioactive decay?
Radioactive decay occurs when unstable isotopes have their nuclei ruptured due to atomic instability. To understand why an isotope disintegrates, we need to look at the atomic nucleus. It is known that the nucleus is loaded with positive particles (protons), and that these are very close to each other. It is also true that particles with equal charges repel each other. Therefore, the proximity of the protons causes them to start to repel each other, in an attempt to take up as much space as possible. In view of this, the nucleus breaks, as it cannot bear these repellent charges.
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