Electron Arrangement Describe the electromagnetic spectrum Light consists of electromagnetic waves. Electromagnetic waves can travel through space or matter. A wavelength is the distance between two successive crests. The velocity of travel, c, is related to its...
The Mass Spectrometer Describe and explain the operation of a mass spectrometer Mass spectrometers are very complex, and are made up of a number of components, each of which performs a particular function. The principle behind it is that the movement of charged...
The Atom State the position of protons, neutrons and electrons in the atom Atoms are made up of a nucleus containing positively charged protons and neutral neutrons, with negatively charged electrons moving around the nucleus in shells. State the relative masses and...