The website has the complete lesson note for all the subjects in secondary school but this piece showcases the SS1 Chemistry Lesson Note on Elements and their Symbols. You can use the website search button to filter out the subject of interest to you.
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Elements And Their Symbols
An element is a substance that cannot be broken into simpler substances by any chemical methods. Examples of elements include: Iron, tin, aluminum etc.
There are about 118 known elements of which 92 are naturally exiting elements and the rest are artificially made.
Symbols are modern ways of representing atoms of elements by using abbreviations. The modern symbols were developed by Berzelius in 1814.
First, He used the first letter in the name of the element.
Examples
 ELEMENT                                                             SYMBOL
Hydrogen                                                               H
Boron                                                                     B
Carbon                                                                   C
Nitrogen                                                                 N
Oxygen                                                                  O
Fluorine                                                                 F
Phosphorus                                                            P
Sulphur                                                                  S
Iodine                                                                      I
The second principle uses the first two letters.
Examples:
ELEMENTSÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SYMBOL
Helium                                                     He
Lithium                                                    Li
Beryllium                                                Be
Neon                                                        Ne
Aluminum                                               Al
Silicon                                                     Si
Argon                                                       Ar
Calcium                                                   Ca
Bromine                                                   Br
Barium                                                     Ba
The third principle is when the first letter and another letter in the name are used.
Example:
ELEMENTSÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SYMBOL
Magnesium                                              Mg
Chlorine                                                   Cl
Chromium                                               Cr
Manganese                                               Mn
Zinc                                                          Zn
The fourth principle is the elements that derived symbols from their Latin names.
Example:
ELEMENTÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â LATIN NAMEÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SYMBOL
Sodium                                Natrium                              Na
Potassium                            Kalium                               K
Iron                                      Ferrum                               Fe
Copper                                 Cuprum                              Cu
Silver                                   Argentum                           Ag
Tin                                       Stannum                             Sn
Gold                                     Aurum                                Au
Mercury                               Hydrargyrum                     Hg
Lead                                     Plumbum                            Pb
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