[Medicinal]

Hey everyone,

I've been thinking, are there any fun books out there that take a look at aspects of basic chemistry that are never explained in textbooks - due to lack of space.

For example, most introductory chemistry books will describe the relationship of electronegitivities and periods/rows of the periodic table. What other relationships are there that aren't considered important enough to point out for a student?

I have been trying to find patterns/relationships between elements/compouds on my own. No such luck yet. Still, something that interests me...

I started thinking about this after observing that many mathematicians come up with their own observations/relationships about numbers. I just wondered if chemistry had the same thing going on...

[Borek]

All these relationships have been researched to death since Mendeleev. Most properties (for example melting point, boiling point, density, ionization energies) do show some dependency on the element position in the periodic table.