Don't forget to take a ruler and calculator into the exam. Maths questions often start with the command word 'calculate'. You need to use numbers given in the question to work out the answer. When an ...

Atoms are the fundamental components of matter, made up of three subatomic particles: protons, neutrons, and electrons. The structure of atoms determines the properties and behavior of different ...

Electron diffraction is a powerful analytical technique used to study the atomic structure of materials. It involves the interaction of a beam of electrons with a crystalline sample, resulting in a ...