Everything in the world is made up of atoms. The structure of the atom is what gives an element its chemical and physical properties. Negatively charged particles that spin around the positive centre ...

Part of Physics (Single Science) Unit 1: Atomic and nuclear physics Most of the mass and all of the positive charge of an atom is in the nucleus. Most of an atom is empty space, (a vacuum). In 1897, ...

I CONCUR with Prof. Rutherford (NATURE, December 11, p. 423) that the work by Moseley in the current number of the Philosophical Magazine, which was not published, and was quite unknown to me when I ...