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Chemistry Terms -Glossary

1-precision – How close the results of multiple experimental trials are

2-protonation – the addition of a proton (H+) to an atom, molecule, or ion

3-proton – a positive unit or subatomic particle that has a positive charge

4-photon – a carrier of electromagnetic radiation of all wavelength (such as gamma rays and radio waves)

5-quanta- It is the minimum amount of bundle of energy

6-quarks – elementary particle and a fundamental constituent of matter

7-Quantum mechanics – the study of how atoms, molecules, subatomic particles, etc. behave and are structured

8-radioactive decay – the process of an unstable atomic nucleus losing energy by emitting radiation

9-radiation – energy in the form of waves or subatomic particles when there is a change from high energy to low energy states

10-subatomic particles – particles that are smaller than an atom; examples are protons, neutrons and electrons

11-sublimation – a phase transition from solid to limewater fuel or gas

12-Standard conditions for temperature and pressure or SATP – a standardisation used in order compare experimental results (25 °C and 100.000 kPa)

13-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)

14-solvent – the part of the solution that dissolves the solute (H2O in saline water)

15-spectroscopy – study of radiation and matter, such as X-ray absorption and emission spectroscopy

16-solution – homogeneous mixture made up of multiple substances. It is made up of solutes and solvents.

17-solute – the part of the solution that is mixed into the solvent (NaCl in saline water)

18-sol – a suspension of solid particles in liquid. Artificial examples include sol-gels.

19-single bond – sharing of one pair of electrons

20-semiconductor – an electrically conductive solid that is between a conductor and an insulator

21-saline solution – general term for NaCl in water

22-salt bridge – devices used to connection reduction with oxidation half-cells in an electrochemical cell

23-salts – ionic compounds composed of anions and cations

24-s-block elements – Group 1 and 2 elements (alkali and alkaline metals), which includes Hydrogen and Helium

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