science of element
DESCRIPTION
The first known element, dirt (chemical symbol De), was characterized by Zog the Neanderthal somewhere in southern Europe before fire was invented. The second known element, rock (chemical symbol Rk) was discovered soon after. Two most abundant elements in the Earth's crust are, oxygen and silicon, which can be found, for example, in sand (SiO2). Aluminum and iron are the next two most abundant elements. The only element that was named after a LIVING person was Seaborgium. Because he was still alive (and they could prove it), the international committee debated for some time whether to name it after him. The element with the highest boiling point 5930 K, tungsten was used for the filament of light bulbs by Edison. The one with the lowest boiling point, is helium and not the lightest element hydrogen, since a hydrogen gas consists of H2 molecules. In principle, a bar of phosphorus may be used as a thermometer, because of its greatest linear thermal expansion. However, it is not reliable. Besides, it may ignite spontaneously in air. Why do diamonds stay in a diamond ring? They have the smallest known thermal expansion coefficient. Of all elements in solid state, the densest element is osmium (22.6 g/mL), not gold. Iridium is next (22.42), followed by platinum, rhenium, neptunium, plutonium and gold.TRANSCRIPT
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