If a nucleus at rest disintegrates into similar nuclei, in which direction will they be emitted and why?

Which set is similar?

A nucleus disintegrated into two nuclei and their velocities are in the ratio of 2:1. What will be the ratio of their size ?

Statement I:Some energy is released when a heavy nucleus disintegrate into two nuclei of moderate size. Statement II: The more the mass number of the nucleus , more is the binding energy for each proton or neutron

Why do impulses in a neuron travel in one direction only?

An excited Ne^22 nucleus is disintegrated into an unknown nucleus and two alpha -particles . This unknown nucleus is

The half-life of I^131 is 8d. If a sample of I^131 is taken at time t=0, then it can be said that (A) No nuclear disintegration will occur before t=4 d. (B) No nuclear disintegration will occur before t=8 d. (C) all nuclei will be disintegrated in t=16 d. (D) A definite nucleus may be disintegrated at any time after t=0.

If the half-life of a radioactive nucleus is 3 days, nearly what fraction of the initial number of nuclei will decay on the 3rd day? (Given, 3sqrt(0.25)~~ 0.63 ).

In a radioactive disintegration a nucleus emits an alpha -particle first and then two beta -particles. Show that the final nucleus thus formed is the isotope of the first.