Search results for "Periodic table/List of elements by name" - New World Encyclopedia

that are intermediate between those of metals and nonmetals. The following ... as a metalloid. Because very limited amounts of this element have been available ...

several properties that are opposite those of a metal. Based on their properties ... Only 18 elements of the periodic table are generally considered nonmetals ...

The periodic table of the chemical elements is a tabular display of ... :Main article: History of the periodic table The original table was ...

The development of the periodic table of the elements parallels the ... eighteenth and nineteenth centuries the rate of discovery of new elements increased ...

just a trace element in the air. As a member of the noble gas series, it is ... meaning "new") was discovered by Scottish chemist William Ramsay ...

35) is a nonmetal that belongs to a group of chemical elements known as ... Bromine is an important resource for the production of a wide range ...

Protactinium (chemical symbol Pa, atomic number 91) is a member of ... The isotope protactinium-231 occurs in pitchblende to the extent of ...

Thulium (chemical symbol Tm, atomic number 69) is the least abundant ... techniques have led to easier separation of the rare earths, which has ...

Nd,Y)PO4, which contains up to 0.03 percent of terbium), xenotime (YPO4) and ... Terbium was discovered in 1843 by Swedish chemist Carl Gustaf Mosander, ...

rare metal. Obtained as a byproduct of molybdenum refinement, it is ... This mineral, however, is not an economically viable source of the element. ...

with erbium, holmium, and other rare earth elements. == History == Dysprosium was first identified in Paris in 1886 by French chemist ...

Europium (chemical symbol Eu, atomic number 63) is the most reactive ... has also been identified in the spectra of the Sun and certain stars. ...

9) is a nonmetal that belongs to a group of chemical elements known as ... Fluorine and its compounds are useful for a wide range of applications ...

with yttrium. It is the heaviest and hardest of the rare earth elements. ... Found with almost all other rare-earth metals but never by itself ...

to blue. It belongs to the same family of chemical elements as arsenic ... This element expands on freezing and was long an important component ...

associated with yttrium or other related elements and is used in certain steels ... Ytterbium is found with other rare earth elements in several rare ...

is a bright silvery metal that is a member of the lanthanide series of chemical ... in nature, but, like other rare earth elements, it is contained in many ...

It is associated with several other rare earth elements in the mineral ... century have greatly brought down the cost of production of all rare-earth ...

Argon (chemical symbol Ar, atomic number 18) is a member of the noble ... The inertness of argon is a very useful property for a number of applications ...

temperature and melts in the hand. It is one of only a few materials that expands ... Gallium is most commonly used in the form of the compound gallium ...

with aluminum for minor components needed by the aerospace industry and ... the only known concentrated sources of this element. It is also found ...

61) is a metallic element that is a member of the lanthanide series of chemical ... Promethium can be formed as a product of uranium fission. Only trace ...

17) is a nonmetal that belongs to a group of chemical elements known as ... in nature and necessary for most forms of life, including human life ...

a silvery metallic element that is a member of the lanthanide series of chemical ... It constitutes about 38 parts per million (ppm) of the Earth’s crust. ...

in combination with other rare earth elements, it is one of the most reactive ... Lanthanum, its alloys, and its compounds have a wide range of applications ...

the two difficult to separate. About half of all hafnium metal manufactured ... Hafnium (Latin Hafnia for "Copenhagen," the hometown of ...

symbol Cs, atomic number 55) is a member of the group of chemical elements ... This element has many isotopes, of which the single stable isotope ...

extreme care. It has been used in a number of murders, earning the nickname ... for low-temperature measurements. Crystals of thallium bromide-iodide have ...

quot; element used in the production of the first high-temperature ... Interestingly, lunar rock samples retrieved by Apollo space missions were ...

the composition, structure, and properties of matter, as well as the changes ... Disciplines within chemistry are traditionally grouped by the type ...

silvery-white, inert metal. It is a member of the platinum group of elements ... it is a symbol of wealth and is occasionally used in the presentation ...

silvery white metallic element and a member of the lanthanide series of chemical ... Today, gadolinium is isolated by techniques such as ion exchange and ...

a rare, silver-white metal. It is a member of the platinum group of elements ... addition, this element is useful in a number of other applications, including ...

properties are intermediate between those of metals and nonmetals. It is ... The development of the germanium transistor opened the door to numerous ...

chemical element that belongs to the group of metalloids—its chemical properties ... with care. Exposure to even small amounts of tellurium can generate a garlicky ...

a silvery metallic element that is a member of the lanthanide series of chemical ... Cerium, its alloys, and its compounds are valuable for a variety of ...

gray-white metal that combines with other elements in various proportions. ... The greatest demand for manganese is for the production of iron and ...

Berzelius, is considered a "father of modern chemistry." In ... He stated the first version of the law of conservation of mass; co ...

is a rare, hard, white metal. It is a member of the platinum group of elements ... platinum group metals in the Ural Mountains of western Russia and in parts ...

human body. It is used in the preparation of wear-resistant, high-strength ... Cobalt compounds are used in the production of inks, paints, and varnishes ...

for "discoveries in the chemistry of the transuranium elements" ... , contributed to the discovery and isolation of ten elements, developed ...

alkali strontium hydroxide. The properties of strontium are closest to those ... is widely used in the glass screens of color television sets. Strontium ...

is commonly regarded as the fundamental unit of counting and measurement. For ... known as the "identity element" of multiplication (or multiplicative ...

The most common naturally occurring minerals of barium are barite (barium sulfate ... Barium and its compounds have a variety of applications. For instance ...

is a silvery white, soft metal. It has one of the highest melting points ... free in nature. The main commercial source of molybdenum is the mineral molybdenite ...

This metal is an important component of many alloys, including bronze ... with an abundance in the Earth's crust of about two parts per million ...

:For other meanings of the abbreviation Pr, see PR. number=59 | symbol ... silvery metallic element that is a member of the lanthanide series of chemical ...

slightly radioactive metal and is a member of the actinide series. It can ... as lead. Soil commonly contains an average of around 12 parts per million ...

Sodium (chemical symbol Na, atomic number 11) is a member of a group ... bright illumination at low cost. An alloy of sodium and potassium (NaK) ...

The purified metal is primarily used by the nuclear industry to form ... In nature, zirconium is found combined with other elements but has ...

combined in several minerals and is one of the 26 elements that commonly ... Vanadium was originally discovered by Andrés Manuel del Río, a Spanish ...

for metalworking, and for the production of superalloys for jet engine ... Egypt, Canada, the Democratic Republic of the Congo, Mozambique, Nigeria ...

gray metal. It was discovered in a variety of columbite (now called niobite ... often also contain tantalum. Large deposits of niobium have been found associated ...

sexual reproduction requires the mating of two organisms, male and female ... ==Evolution of the glyph== [[Image:Evolution2glyph.png|thumb|400px|left]] ...

used in nuclear medicine for a wide variety of diagnostic tests. 99Tc is used ... Before the element was discovered, many of the properties of element ...

its monetary value is rated well above that of gold. It is used in jewelry ... Naturally occurring platinum appears to have been used by the craftsmen ...

#039;s crust, constituting about 2 percent of the crust by weight. It is ... In its ionic form, magnesium is one of the most essential elements ...

It forms stable compounds with all elements except the noble gases. ... This element is essential for living organisms, particularly as part ...

atomic number 4) ranks among the lightest of all known metals. Steel-gray ... Alloys of beryllium with copper or nickel are strong and wear-resistant ...

essential in trace amounts for the function of certain enzymes in humans and ... This element and its compounds have a wide range of applications. ...

Potassium (chemical symbol K, atomic number 19) is a member of a group ... The ions, alloys, and compounds of potassium have a wide range of ...

with four allotropic forms. The stable form of antimony is a blue-white metal ... and solder. Recently, it is being used by the semiconductor industry ...

found as an alloy in platinum ore. It is one of the densest natural elements. ... The compound osmium tetroxide is very toxic but has a number of important ...

samples. 7Li would thereforehave a content of up to 96.25%. ... lightest solid chemical element and a member of the group of elements known ...

is a soft, silvery-white metallic element of the alkali metal group. Rb ... and zinnwaldite, which contains traces of up to one percent of its oxide ...

white luster that can take a high degree of polish. Along with copper and ... electronic products. The nitrate and halides of silver are valuable in photography ...

Helium (chemical symbol He, atomic number 2) is a minor component ... almost all new helium is created as a result of the nuclear fusion of hydrogen ...

properties are intermediate between those of metals and nonmetals. It can ... antiseptics, adhesives, and a variety of other products. The isotope ...

and many xenon compounds have been made by now.[http://periodic.lanl.gov/elements/54 ... This element can be extracted by fractional distillation of liquid ...

It comes in many allotropic forms, of which the yellow, black, and ... surreptitiously, arsenic was used in history by murderers, including members ...

nonmetal that belongs to the nitrogen group of chemical elements. Given its ... When purified artificially, several different allotropic forms of ...

Its chemical properties are similar to those of zinc, and it is found in zinc ... plastics stabilizers, and many kinds of solder. In nuclear reactors ...

plating. The human body needs trace amounts of trivalent chromium (chromium ... used in paints and pigments. The red color of rubies derives from the presence ...

metallic chemical element that is part of the actinide series. It is ... naturally in uranium ores. These come about by a process of neutron capture ...

tasteless gas that makes up about 21% (by volume) of air. In combination ... Oxygen is essential for the respiratory function of humans, animals ...

html Solar Wind Squeezes Some of Earth's Atmosphere into ... An ion is an atom, group of atoms, or subatomic particle with a net ...

Its melting point is higher than that of any other non-alloy, and it ... Tungsten was first hypothesized to exist by Peter Woulfe in 1779, ...

reasons, lead has been used during much of human history. Lead and its ... and arsenic. Lead is mentioned in the Book of Exodus. Lead pipes that bear ...

Copper (symbol Cu, atomic number 29) is one of the oldest known metals ... used in hospitals to prevent the transfer of germs, and copper (II) sulfate ...

various rocks, minerals, coral, and shells of marine animals. Soft gray in ... state. Rather, it occurs in the form of various compounds: calcium ...

chemical element in the actinide series of the periodic table. The heaviest ... 235 (0.72 percent), and a very small amount of uranium-234 (0.0058 percent ...

metal that is found in ores in many parts of the world. It is an essential ... sunburn and diaper rash. The chloride of zinc is a deodorant, and the ...

electronic circuit (consisting mainly of semiconductor devices, as well ... to the brain to repair different types of brain damage. With this kind ...

Nitrogen (symbol N, atomic number 7) is the chief constituent of the ... In living organisms, nitrogen atoms are part of the molecular structures ...

Natural deposits of mercury-bearing minerals, usually in the form ... Mercury and most of its compounds are highly toxic and need to be ...

South America is a continent of the Americas, situated entirely in ... South America has a land area of 17,840,000 square kilometers (6,890 ...

The Nobel Prizes are prizes instituted by the will of Alfred Bernhard ... have been honored more than once, a total of 813 different individuals and ...

== Evolution of the glyph == J upside down. The main contribution of the western Ghubar Arabs was ...

that converts solar energy into electricity by the photovoltaic effect. Sometimes ... " meaning electric, from the name of the Italian physicist Volta ...

refers to the ocean or world ocean, the body of salty water that covers approximately ... A wide variety of organisms, including bacteria, protists, algae, ...

Iran (ايران, Īrān), officially the Islamic Republic of Iran ... The history of Iran covers over four thousand years. Throughout history ...