I don't understand what you mean by "class" but its a alkali-metal.
Rubidium hypochlorite is the name for this chemical formula.
Rb is the symbol for the element, rubidium.
Rb is rubidium, O is oxygen. They will combine to form Rb2O which is called rubidium oxide.
Rubidium is an element and so it is made of nothing but rubidium.
Rubidium iodide
Rubidium is not flammable.
Rubidium is a neutral atom in its elemental form. The rubidium ion, found in rubidium compounds, is smaller than a neutral rubidium atom.
Rubidium's symbol is Rb.
Rubidium
That is the formula. Rubidium fluoride (RbF) has a chemical formula of RbF.
The word equation for the reaction of rubidium with water is rubidium + water --> rubidium hydroxide + hydrogen. Rubidium is a metal that reacts very quickly and fiercely, even explosively with water.
Rubidium Cyanide-RbCn