Chemistry 101 – A Subatomic Soap OperaWhen it comes right down to it, the atomic world has enough drama to rival the most epic telenovela. There’s love. There’s hate. Bonds are formed and b...

We said that a regular atom needs to have the same number of protons as electrons, but we didn’t say anything about neutrons. Neutrons are special because their number can vary in a regular atom....

We now know that the number of protons is what defines the kind of atom or element we are dealing with, and if you change the number of protons, you get a totally different element. We also know th...

Kinds of Bonds and the Laws of AttractionYou may ask yourself, what are all these atoms and ions doing with themselves? As it turns out, a lot of them are bonding with other atoms and ions. Get a r...

Water Is SpecialWe’ll overlook the indiscretion of hydrogen bonds in light of the fact that they are partly responsible for water’s unique properties. Now, everyone is special, and we’re not...

Congratulations! You are officially a certified chemistry guru. We can now move on to some more biologically oriented chemistry. Isn’t that what you were hoping for? Yes, yes it was.Molecules can...

Some biological molecules are relatively small and may contain a handful of atoms bound together. Others are large and unwieldy and can contain hundreds or thousands of atoms. If you were trying to...

Carbs are awesome, and not just because they’re responsible for some of the tastiest comfort foods known to humankind. To quote Homer Simpson, "Mmmmmm, donuts." Carbohydrates are an important sou...

Lipids are an eclectic bunch of biomolecules. Yet, for all their differences, each and every lipid is hydrophobic, meaning it doesn't dissolve in water. That's because long stretches of lipid molec...

Now that we have left Lipid Town, we move on to the big city, Proteinopolis. Proteins do all sorts of nifty things. For instance, they may provide structure, increase the speed of chemical reaction...

Nucleic acids—our buddies deoxyribonucleic acid, or DNA, and ribonucleic acid, or RNA—consist of long chains of nucleotides, which are monomers. (Sensing a pattern yet? Good. Biology is all abo...

Chemistry1. Don’t confuse ions and isotopes. Remember, ions are charged particles. They form when electrons are gained or lost, which creates an imbalance in the number of protons relative to ele...

Chemistry QuestionsPotassium (K) has an atomic number of 19. How many protons does it have? How many electrons does it have? Magnesium (Mg) has two electrons in its outer shell, which can hold...

Offline ResourcesAudesirk, T. & Audesirk, G. (1999). Biology: Life on Earth (5th ed.). Upper Saddle River, NJ: Prentice Hall.Campbell, N.A., Reece, J.B., Urry, L.A., Cain, M.L., Wasserman, S.A....