The group of elements belonging to the leftmost side in the periodic table is called the group 1 element and corresponds to hydrogen, lithium, sodium, potassium, rubidium, cesium, and francium. Among ...

Lithium metal, a soft solid, that can be cut with a knife, is far too reactive to be found in its natural (metallic) form. This is because it belongs to the Group 1 element (alkali metals) on the ...

The periodic table stares down from the walls of just about every chemistry lab. The credit for its creation generally goes to Dimitri Mendeleev, a Russian chemist who in 1869 wrote out the known ...

The periodic table arranges all the chemical elements in a specific way. Patterns are visible in the way that elements behave, and this allows us to make predictions about other elements. Gethin: And ...