Rutherford proton -neutron model shows that there are no elections in nucleus of an atom.howis it possible for a radioactive element to emit beta particle from its nucleus ?

The Rutherford proton-neutron model does not account for the presence of electrons in the nucleus of an atom, as electrons are typically found in the electron cloud surrounding the nucleus. However, in certain radioactive elements, a neutron in the nucleus can be converted into a proton, releasing a beta particle (an electron or positron) in the process. This process is known as beta decay.

During beta decay, a neutron in the nucleus is converted into a proton, releasing a beta particle and an antineutrino (or neutrino) in the process. This conversion is possible due to the weak nuclear force, which allows for the transformation of particles within the nucleus.

So, while the Rutherford proton-neutron model does not explicitly include electrons in the nucleus, beta decay is a process that can occur in certain radioactive elements, leading to the emission of beta particles from the nucleus.