S
- s-block elements - Group 1 and 2 elements (alkali and alkaline metals), which includes Hydrogen and Helium
- salts - ionic compounds composed of anions and cations
- salt bridge - devices used to connection reduction with oxidation half-cells in an electrochemical cell
- saline solution - general term for NaCl in water
- Schrödinger equation - quantum state equation which represents the behaviour of an election around an atom
- semiconductor - an electrically conductive solid that is between a conductor and an insulator
- single bond - sharing of one pair of electrons
- sol - a suspension of solid particles in liquid. Artificial examples include sol-gels.
- solid - one of the states of matter, where the molecules are packed close together, there is a resistance of movement/deformation and volume change; see Young's modulus
- solute - the part of the solution that is mixed into the solvent (NaCl in saline water)
- solution - homogeneous mixture made up of multiple substances. It is made up of solutes and solvents.
- solvent - the part of the solution that dissolves the solute (H2O in saline water)
- spectroscopy - study of radiation and matter, such as X-ray absorption and emission spectroscopy
- speed of light - the speed of anything that has zero rest mass (Energyrest = mc² where m is the mass and c is the speed of light)
- Standard conditions for temperature and pressure or SATP - a standardisation used in order compare experimental results (25 °C and 100.000 kPa)
- state of matter - matter having a homogeneous, macroscopic phase; gas, plasma, liquid, and solid are the most well known (in increasing concentration)
- sublimation - a phase transition from solid to gas
- subatomic particles - particles that are smaller than an atom; examples are protons, neutrons and electrons
- substance - material with definite chemical composition
Read more about this topic: Glossary Of Chemistry Terms