Before we begin assigning the electrons of an atom into orbitals, we must first familiarize ourselves with the basic concepts needed to become fluent in electron configurations. Every element on the periodic table consists of an atom which is composed of protons, neutrons, and electrons. In these situations, we are concerned with the electrons. Electrons exhibit a negative charge and are found around within the nucleus of the atom. Electron orbitals are the position of the electrons around the nucleus and is determined as the volume of space in which the electron can be found within 95% probability. The four different types of orbitals s,p,d, and f have different shapes and one orbital can hold a maximum of two electrons. The p, d, and f orbitals have different sublevels unlike the s orbital and thus can hold more electrons.