Handbook of data on organic compounds
Sulfur's name comes from either the Latin word sulfurium or the Sanskrit word sulvere ; both of those terms are ancient words for sulfur.
Selenium has dungeon siege 3 coop pc six observationally stable or nearly stable isotopes, 26 radioactive isotopes, and 9 isomers.
Bismuth telluride is also used in many microelectronic devices, such as photoreceptors.
Archived from the original on November 4, 2013.Polonium is also used in nuclear batteries.These days sulfur is instead more often extracted from oil, natural gas, and tar.Similarly, secondary phosphines can react with chalcogens to form secondary phosphine chalcogenides.Sulfur tetrafluoride is also a well-known sulfur fluoride.Devillanova, Francesco.,.Cadmium telluride is used as a high-efficiency material in solar panels.1, often, oxygen is treated separately from the other chalcogens, sometimes even excluded from the scope of the term "chalcogen" altogether, due to its very different chemical behavior from sulfur, selenium, tellurium, and polonium.Some tellurium halides with low valences, such as Te2Cl2 and Te2Br2, form polymers when in the solid state.A b Heiserman, Davis.1 Selenium is a trace nutrient required by humans on the order of tens or hundreds of micrograms per day.As of 2011, roughly 25 atoms of livermorium had been synthesized.Livermorium isotopes 290 through 293 have been discovered.However, more complicated chalcogen halides, such as sulfenyl, sulfonyl, and sulfuryl halides, are less well-known to science.Selenium, like most chalcogens, bonds with oxygen.The, nIST Chemistry WebBook contains: Thermochemical data for over 7000 organic and small inorganic compounds: Enthalpy of formation, enthalpy of combustion, heat capacity.Is a professor of chemical engineering at Lamar University.67 Many sulfur compounds, such as hydrogen sulfide (H2S) and sulfur dioxide (SO2) are highly toxic.1 Polonium's oxidation states are 2 and.5 Lighter chalcogens are typically nontoxic in their elemental form, and are often critical to life, while the heavier chalcogens are typically toxic.
30 With metals edit Elemental chalcogens react with certain lanthanide compounds to form lanthanide clusters rich in chalcogens.