Question

Predict a likely mode of decay for each of the following unstable nuclides. Beta decay or positron emission?

Ti-57 Fr-202 As-65 Cr-60

Answer 1

Solution :-

When neurton to proton ratio is higher then beta decay mode is followed and when nutron to proton ratio is lower then electron capture decay mode is followed.

The elements with atomic number above 84 folllows the alpha decay method

Therefore following is the classification for each

Ti-57 = beta decay

Fr-202 = alpha decay

As-65 = electron capture

Cr-60 = beta decay