Periodic Table

We learnt about this in secondary 1 but it was not as detailed as in sec2. In this topic, we learnt about how this table was created, the atomic mass and number. We also learnt that the elements are classified by their characteristics. For example, in group 1, all the elements are alkaline. Alkaline elements are shiny. For the second group is the halogens. They are combine with metal to produce salts. The third one is The Noble Gases.

After this topic, i learnt more about elements.