Rubidium is a chemical element with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with a standard atomic weight of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, including rapid oxidationin air. On Earth, natural rubidium comprises two isotopes: 72% is the stable isotope, 85Rb; 28% is the slightly radioactive 87Rb, with a half-life of 49 billion years—more than three times longer than the estimated age of the universe.
aluminum element is more reactive than rubidium (Rb)
A: gold 19.32 g/ml
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Flat as more oxygen and water can react over it think of it like this would a cube rust faster than a sheet
Answer:
100%
Explanation:
Cell is the structural and functional unit of life. Without Cell, an organism can never be created.
