Documents During the 19 th century, chemists began to categorize the elements according to similarities in...

During the 19th century, chemists began to categorize the elements according to similarities in their physical and chemical properties. The end result of these studies was…

Documents Alkali Metals

Group 1: Alkali Metals Group 1: Alkali Metals The elements of Group 1, the Alkali metals, are:   symbol electron configuration lithium Li [He]2s1 sodium Na [Ne]3s1 potassium…

Documents Science Module

Science Module 8th Grade TABLE THE DISCUSSION TAKS Objective 3 The student will demonstrate an understanding of the structures and properties of matter. TEKS Science Concepts…