The Basics of the Periodic Table

Perhaps the most famous diagram in science and a chemist’s best friend is the periodic table, created in 1869 by Russian chemist, Dmitri Mendeleev. The periodic table organizes every fundamental atom according to their valence electron numbers, size, type, electronegativity, and much more. The first 92 elements on the periodic table are naturally occurring, the … Continue reading The Basics of the Periodic Table

The Basics of One Dimensional Motion

One dimensional motion is built upon four very important measurements: velocity, time, displacement, and average acceleration. Before jumping into the discussion on these measurements, it should be made known that all of these measurements, except for time, are vectors. Vectors are measurements that describe both magnitude (size or value) and direction. The other type of … Continue reading The Basics of One Dimensional Motion

The Weak Interactions Between Atoms

In a previous article I discussed the following ways atoms bond: Covalent Bonds: bond by sharing valence electrons equally between them, Polar Covalent Bonds: where the valence electrons are still shared between atoms but electrons will tend to hang around the more electronegative atom creating partial charges for each atom, Ionic Bonds: wherein the more electronegative atom … Continue reading The Weak Interactions Between Atoms

Valence Electrons, the Octet Rule, and Electronegativity

Atoms are made up of neutrons and protons located within the nucleus and electrons around the nucleus. Electrons inhabit “orbits” that surround the nucleus. Calling them “orbits” is misleading, they are more like areas of probability where electrons are likely to be found called orbitals.  The concept of orbitals will be discussed at another time. … Continue reading Valence Electrons, the Octet Rule, and Electronegativity