"Dedicated Chemistry/Biology/Gen. Science/Math /Biochemistry/ Nursing T"
...I start with the Periodic Table of Elements that encompass all known elements. We the go into atomic structure-protons, neutrons, electrons including properties of elements across the table like electronegativities, atomic sizes, reactivities along groups.Valency electrons. Then we go to the CARBON ATOM. It's uniqueness a of having 4 valency electrons...
10+ subjects, including biochemistry