Tungsten is the element used in incandescent light bulb filaments, because it has a very high melting point. Tungsten is a metal with an atomic number of 74, and its atomic weight is 183.84 grams per mole. This metal has a melting point of 6192 degrees Fahrenheit.
Tungsten name comes from the two Swedish words "tung" and "sten" that mean heavy stone. Two Spanish brothers by the last name of Elhuyar discovered tungsten in a sample of wolframite, in 1783. It is a soft metal that has a variety of uses besides its use in light bulbs. Some of these applications are for spacecraft parts and as an alloying agent. It can be alloyed with steel to produce items like rocket engine nozzles.Learn More
An element’s chemical activity is defined as its stability relative to the elements surrounding it on the periodic table. Chemical activity is also related to electronegativity. Elements that are highly electronegative are highly reactive, while elements that have low electronegativity are less reactive.Full Answer >
Salt is a compound, not an element. Table salt, for example, is sodium chloride, a chemical compound with the formula NaCl. It is made from two elements: sodium, or Na, and chlorine, or Cl.Full Answer >
Water is a compound made of two atoms of hydrogen and one atom of oxygen. The hydrogen atoms are bonded to the oxygen atom by the sharing of electrons, called a covalent bond.Full Answer >
Carbon is an element located in sixth position on the periodic table. Its symbol is "C." Known since early human history, there are abundant natural formations of carbon in graphite, diamond and amorphous carbon.Full Answer >