If a nucleus such as `.^(226)Ra` that is initially at rest undergoes `alpha`- decay , then which of the following statemnets is true?

Which of the following statemnet is wrong ?

The nuclide X undergoes alpha -decay and another nuclides Y undergoes beta^(ɵ) -decay, which of the following statement "is"//"are" correct?

Consider the following nuclear decay: (initially .^(236)U_(92) is at rest) ._(92)^(236)rarr_(90)^(232)ThrarrX If the uranium is at rest before its decay, which one of the following statement is true concerning the final nuclei ?

For the radioactive nuclei that undergo either alpha or beta decay, which one of the following cannot occur?

In a radioactive decay chain underset(90)overset(232)Th nucleus decays to underset(82)overset(212)Pb nucleus .Let N_(alpha) and N_(beta) be the number of alpha and beta particles respectively emitted in this decay process which of the following statement is (are) true ?

In a radioactive decay chain, ._(90)^(232)Th nucleus decays to ._(82)^(212)Pb nucleus. Let N_(alpha) and N_(beta) be the number of alpha and beta - particles, respectively, emitted in this decay process. Which of the following statements is (are) true ?

A ._(92)^(238)Th undergoes alpha decay. What is the resulting daughter nucleus?

A nucleus X initially at rest, undergoes alpha decay according to the equation _Z^232Xrarr_90^AY+alpha What fraction of the total energy released in the decay will be the kinetic energy of the alpha particle?