The electrons are arranged in shells around the nucleus. The periodic table The periodic table is a chart of all the elements arranged in increasing atomic number. Group 1 alkali metals The Group ...

img src="https://img.jagranjosh.com/images/2024/May/3152024/periodic-table-of-elements-chemistry.jpg" width="1200" height="675" /> Periodic Table Chemistry: The ...

Two elements in group 1 of the periodic table are lithium and sodium. Very small pieces of lithium and sodium were reacted separately with water. In the periodic table, the group 7 elements and ...