The electron configuration of the inert gases was determined for each. The meaning of inert was discussed, and related to the fact that these gases are referred to as noble gases. The Lewis formulas for each was drawn, and it was seen that the electrons in the last energy level of each of those elements was 8, the maximum number which can be held in the outermost energy level. The relationship between the maximum number of electrons in the last energy level and the inertness of the elements was elucidated. The reaction of sodium with water was seen on a video, to peak interest into chemical reactions which are coming.