Question

What is the half life and decay mode of Rn-222?

Answer 1

`t1/2`= 3.82 days
`alpha` decay

Explanation:

http://www.ptable.com/#Isotope This website is a great resource for properties of isotopes. It gives the mass, binding energy, abundance, half-life, and decay width of almost every known isotope of each element.

For Rn-222, the half life is 3.82 days and it goes through alpha decay to become Po-218.