Main groups in the modern periodic table | Summary

The video tutorial covers the modern periodic table, focusing on the properties and locations of alkali metals and halogens. Group 18, the alkali metals, are located on the left side of the periodic table and are known for being solid, soft, shiny, and good conductors. They have low density and react with water to form alkaline solutions. Group 7-8, the halogens, are on the right side and transition from gases to solids. They form salts with metals and are active elements that do not exist naturally in their elementary states. The video explains how the reactivity of these groups changes with their position in the periodic table.

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