Or click here for full access, Premium options. The squat move that Tiger Woods appears to do in his downswing has been widely criticized by the TV golf pundits over the years because of how much his head lowers during this move.r click here for full access, Premium options. The squat move that Tiger Woods appears to do in his downswing has been widely criticized by the TV golf pundits over the years because of how much his head lowers during this move.
What is Rubidium. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. The chemical symbol for Rubidium is Rb. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidation in air. Rubidium â Properties
Properties: Rubidium may be liquid at room temperature. It ignites spontaneously in air and reacts violently in water, setting fire to the liberated hydrogen. Thus, rubidium must be stored under dry mineral oil, in a vacuum, or in an inert atmosphere. It is a soft, silvery-white metallic element of the alkali group.Rubidium forms amalgams with mercury and alloys with gold, sodium, potassium, and cesium.Rubidium glows red-violet in a flame test. Rubidium can be used to give fireworks a red-violet color. 2  Rubidium is the 23 rd most abundant element in the Earth's crust. 3  Rubidium chloride is used in biochemistry as a biomarker to track where potassium is taken up by living organisms.