The website has the complete lesson note for all the subjects in secondary school but this piece showcases the JSS2 Basic Science Lesson Note on Chemical Elements and Compounds. You can use the website search button to filter out the subject of interest to you.
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TOPIC: Chemical elements and compounds
Meaning of elements
Elements are substances that cannot be broken down into anything else. Everything in the world are built up from these elements. There are about one hundred and twelve (112) elements known today. Scientists use short forms called symbols to represent elements as shown below.
Name of elements     symbols
- Hydrogen H
- Helium  He           Names of elements derived from the Latin name
- Lithium  Li                    English name        Latin name          Symbol
- Beryllium  Be                   Sodium                Natrium                     Na
- Boron B              Iron                        Ferrum                   Fe
- Carbon  C            Copper                   Cuprum                Cu
- Nitrogen  N                     Potassium               Kalium                K
- Oxygen O             Silver                        Argentum          Ar
- Fluorine F             Gold                          Aurum              Au
- Neon Ne              Lead                          Plumbum          Pb
- Sodium  Na                    Mercury                    Hydrargyrum    Hg
- Magnesium Mg
- Aluminum Al
- Silicon Si
- Phosphorus  P
- Sulphur S
- Chlorine Cl
- Argon Ar
- Potassium K
- Calcium. Ca
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