Identify the particle represented by each symbol as an alpha particle, a beta particle, a gamma ray, a positron, a neutron, or a proton.
Solution 55P :
The particle represented is a Beta () particle.
Beta () radiation occurs when an unstable nucleus emits an electron . When an unstable nuclei converts the neutron to proton, the electron is emitted and as a result Beta () radiation occurs. The symbol for a beta () particle in a nuclear equation is :
The particle represented is a neutron.
Neutron is a subatomic particle that is inside nucleus of the atom along with the proton. Neutrons don’t have charge and has slightly larger mass than the proton.
Neutron is represented as :
The particle represented here is a Gamma() particle.
Gamma() radiation is a electromagnetic radiation and they are high energy (short-wavelength) photons. The symbol for a gamma ray is:
A gamma ray has no charge and no mass. When a gamma ray is emitted from a radioactive atom, the mass number or the atomic number of the element is not changed.