How are the elements of the Periodic Table arranged?

What are the properties of the groups?
(1, Central Block, 7 and 0)

What are the trends of Periods and Groups?
(1, 7 and 0)

What is the Atomic Number and Mass Number?

What is an Isotope?

Does being one affect the atoms chemical properties?

What does the Electronic Configuration show?

What is Relative Atomic Mass?

How doe you work out RAM?