: They are highly reactive, soft enough to be cut with a knife, and have low densities (lithium, sodium, and potassium can float on water).
In the periodic table, consists of hydrogen and the alkali metals. These elements are located in the first vertical column on the far left. group.1
: They all have one electron in their outer shell, making them very unstable. They react vigorously with water to produce alkaline solutions and hydrogen gas. 2. Driving Licenses (UK/GB) : They are highly reactive, soft enough to
In the United Kingdom, driving licenses are divided into groups based on the type of vehicle you are permitted to operate. General information: assessing fitness to drive - GOV.UK : They all have one electron in their
: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr).