Disproportionation is a reaction in which two units (atoms, molecules, ions, radicals) of the same species react with each other to give two units (atoms, molecules, ions, radicals) of different speci...Disproportionation is a reaction in which two units (atoms, molecules, ions, radicals) of the same species react with each other to give two units (atoms, molecules, ions, radicals) of different species.
Li, Na, K, Rb, and Cs are all group IA elements, also known as the alkali metals. The seventh member of the group, francium (Fr) is radioactive and so rare that only 20 atoms of Fr may exist on Earth ...Li, Na, K, Rb, and Cs are all group IA elements, also known as the alkali metals. The seventh member of the group, francium (Fr) is radioactive and so rare that only 20 atoms of Fr may exist on Earth at any given moment. The term alkali is derived from an Arabic word meaning “ashes.” Compounds of potassium as well as other alkali metals were obtained from wood ashes by early chemists.
