Apa Itu.. Radiasi Alfa, Beta, Gamma Radioaktif

The video discusses the discovery of uranium, a naturally occurring radioactive element identified in 1789 by German chemist Martin Heinrich Klaproth, and its isolation in 1896 by physicist Henri Becquerel, who uncovered its radioactivity. Uranium is unstable due to an imbalance between its protons and neutrons, resulting in radioactive decay where the nucleus releases smaller particles. This decay process produces radiation that can generate energy, utilized in nuclear power. There are three types of radiation: alpha, beta, and gamma. Alpha radiation, with positive charge, has larger mass and low penetration ability and cannot pass through paper or skin. Beta radiation consists of electrons with greater penetration, capable of passing through thin materials but blocked by denser substances. Gamma radiation, electromagnetic waves with no charge, possesses the highest penetration power, dangerous to human health, but can be blocked by thick materials like lead or concrete, relevant for storing radioactive waste.