The Elements to the upper right of this line display increasing non-metallic behaviour whereas elements to the lower left display increasing metallic behaviour. Key groups include alkali metals, alkaline earth metals, halogens. Arsenic, for example, is a metalloid that has the visual appearance of a metal. Metalloids is represented differently on different versions of the Periodic Table. The table is divided into metals, nonmetals, and metalloids, each with distinct properties. The Chemistry Divisions Periodic Table describes the history, properties. The metalloid definition is considered to include between six to nine elements. Elements in the same group share similar characteristics, like reactivity. Metalloid elements, also known as semimetals, are elements that have properties of both metals and nonmetals. It is also known as quicksilver and was formerly named hydrargyrum ( / hadrrdrm / hy-DRAR-jr-m) from the Greek words hydor (water) and argyros (silver). Despite the lack of specificity, the term remains in use in the literature of chemistry. Mercury is a chemical element it has symbol Hg and atomic number 80. There is no standard definition of a metalloid and no complete agreement on which elements are metalloids. Metalloids have properties of both metals and non-metals. The periodic table organizes elements into groups and periods based on their chemical and physical properties. A metalloid is a type of chemical element which has a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals. The stair-step line of the Metalloids are from Boron to Polonium. In the standard layout of the periodic table, metalloids occur along the diagonal the stair-step line that distinguishes metals from non-metals. A metalloid is a chemical element that exhibits some properties of metals and some of nonmetals. ![]() Some are semi-conductors and can carry an electrical charge making them useful in calculators and computers. While there is disagreement over exactly which elements should be included, many chemists state the lanthanides are elements with atomic numbers 58 through 71. ![]() Elements classified as Metalloids have properties of both metals and non-metals - refer to Metalloid Properties. On the Periodic Table of Elements, elements are arranged in columns known as 'groups,' and rows known as 'periods. The lanthanides are the elements in the top of the two rows located below the main body of the periodic table. The 7 elements classified as "Metalloids" are located in Groups 13, 14, 15, 16 and 17 elements of the Periodic Table.
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