Prime purpose of this lecture is to present on Elements, atoms, ions, and the periodic table. Electrons are involved in bond formation when compounds are formed. So we want to see if there is some order in how electrons are arranged about the nucleus. Also we want to see if there are some general trends for the elements so we can get some general idea about how groups of elements react. Here also briefly differentiate between Early periodic tables and Modern periodic tables.
Elements, atoms, ions, and the periodic table
