1. Low ionization potential and large atomic size:
Atoms with low ionization potential and large atomic size have a weaker hold on their outermost electrons. This makes it easier for them to lose electrons and form cations. This is typically seen in metals.
2. Gamma rays:
Gamma rays are a form of electromagnetic radiation. They are high-energy photons emitted during radioactive decay or nuclear reactions. In contrast, the process mentioned here is related to the formation of cations and gamma rays are unrelated to this.
3. Trend in metals:
Elements with low ionization energy and large atomic size are typically metals, especially alkali and alkaline earth metals, which easily lose electrons and form positive ions (cations).