Sec Sch Chapter 16 Periodic Table
The development of the Periodic Table started in the 1800s as chemists began to recognise similarities in the properties of various elements and place them in families. In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered. While arranging the elements according to their atomic weight, if he found that they did not fit into the group he would rearrange them. This content-heavy topic is the first chapter most secondary 4 students will be taught. The course is designed with a refreshing emphasis on observation and understanding of the difference between elements in the same group and periods. This course is designed to teach students the different physical properties of elements in the same period as well as some special properties shared between certain element groups so students can better appreciate the order and design of the Periodic table, and draw trends and hypotheses on anomalies and applications of elements found in the Periodic Table.
