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500 miles per hour
Sulfur has been known since ancient times and is referred to in early literature as “brimstone” because of the distinctive rancid smell that is produced when lightning strikes a rock and vaporizes the sulfur present in the rock
Osmium is the densest naturally occurring element
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D–We came in peace for all mankind
Technetium Element Cube Dinosaur Fossils 500 miles per hourTechnetium's atomic number is 43 and its symbol is Tc. It is a silvery gray transition metal, tarnishes slowly in moist air, and is the lightest radioactive element. It dissolves in nitric acid, aqua regia (nitro hydrochloric acid) and concentrated sulfuric acid, but is not soluble in any strength of hydrochloric acid. Its name comes from the Greek technetos, artificial. This is due to the element not appearing in nature. Therefore, it can only be
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