Do you know which element has the highest melting point? It's tungsten, with a melting point of 3,422 degrees Celsius! Tungsten is commonly used in incandescent light bulbs and welding electrodes due to its high melting point and strength. On the other hand, which element has the lowest melting point? Helium has the lowest melting point of any element, at -272.2 degrees Celsius. This is why helium is used to cool superconducting magnets in magnetic resonance imaging (MRI) machines. Another interesting property of elements is their density. Can you guess which element is the densest? Osmium takes the title for the densest naturally occurring element, with a density of 22.59 grams per cubic centimeter. This dense metal is often used in high-temperature alloys and fountain pen tips. Lastly, which element is the lightest? Hydrogen is the lightest element, with a density of 0.0000899 grams per cubic centimeter. Hydrogen is used in various applications, such as rocket fuel and hydrogen fuel cells. Knowing the properties of elements can help us understand their uses and applications in the world around us.