After the emission of `alpha`-particle from the atom `X_92^238`, the number of neutrons in the atom will be

After the emission of an alpha - particle from the atom ""_(92)^(238) X , the number of neutrons in the atom will be xyz , Y is___

Emission of a beta particle from an atom

After emission of one alpha particle followed by one beta -particle from ""_(92)^(238)X , the number of neutrons in the atom will be

After the emission of one alpha - particle followed by two beta -particles from "" _(92) ^(238) U, the number of neutrons in the newly formed nucleus is

With the emission of beta -particle from an atom of an element, its atomic number