Quick Blog Question

I have gained a lot of knowledge about the periodic table thus far. I have learned that each vertical row is called a group which is arranged by the element's similar properties, while the horizontal row is called a period with elements listed in order of atomic number. Also, I know that the periodic table contains metals, nonmetals, and metalloids. The metals are mostly on the left and middle of the table, the nonmetals are on the right side of the table, and the metalloids are also on the right side, but there is just 7 of them.