Search results
Results From The WOW.Com Content Network
This is a list of 194 sources that list elements classified as metalloids. The sources are listed in chronological order. Lists of metalloids differ since there is no rigorous widely accepted definition of metalloid (or its occasional alias, 'semi-metal'). Individual lists share common ground, with variations occurring at the margins.
The origin and usage of the term metalloid is convoluted. The "Manual of Metalloids" published in 1864 divided all elements into either metals or metalloids. [235]: 31 Earlier usage in mineralogy, to describe a mineral having a metallic appearance, can be sourced to as early as 1800. [236]
The chemical elements can be broadly divided into metals, metalloids, and nonmetals according to their shared physical and chemical properties.All elemental metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metallic elements; and have at least one basic oxide.
Pages in category "Metalloids" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. ...
Being a metalloid, most of its chemistry is nonmetallic in nature. Boron is a poor oxidizing agent (B 12 + 3e → BH 3 = –0.15 V at pH 0). While it bonds covalently in nearly all of its compounds, it can form intermetallic compounds and alloys with transition metals of the composition M n B, if n > 2.
Metalloids – Variously-defined group of elements with properties intermediate between metals and nonmetals. In alphabetic order: Coinage metals – Various metals used to mint coins, primarily the group 11 elements Cu, Ag, and Au.
Hydrogen is placed by itself on account of it being "so different from all other elements". [6] The remaining nonmetals are divided into nonmetals , halogens , and noble gases , with the unnamed class being distinguished by including nonmetals with relatively strong interatomic bonding, and the metalloids being effectively treated as a third ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file