Hello class, today we're going to learn Bout the Periodic Table
For starters, there are separate groups each element belongs to depending on their properties. For instance; alkali and alkaline earth metals are very reactive due to their valence electrons amount. However; the noble gases are non reactive due to their full electron shelves.
And each section has its own properties. For insance; metals are malleable, which means they can be hammered into sheets.
That's unfortunately all the time we have for today, see you tomorrow class