Ernest+Rutherford+A2

​ __**Ernest Rutherford** __




 * Ernest Rutherfords atomic theory stated that an atom has a central positive nucleus surrounded by negitive orbiting electrons.
 * He found out that all known radioactive elements emit two kinds of raiation: positive and negative. He showed that every radioactive element decreases in radioactivity over a unique and regular time, or half-life, ultimately becoming stable.