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There are 6 metalloids in the periodic table. The periodic table is a tabular arrangement of chemical elements sorted by atomic number, electronic configuration, and recurrent chemical characteristics, the structure of which demonstrates periodic tendencies. Within one row (period), the elements are generally metals to the left and nonmetals to the right, with elements with comparable chemical properties grouped in the same column. Table rows are typically referred to as periods, while table columns are referred to as groups. Six organisations have accepted names and numbers.
The term element refers to a group of atoms that cannot be broken down into simpler forms via physical or chemical means.
Elements such as sodium, calcium, and magnesium are examples.
Elements of many sorts of metals, non-metals, and metalloids are the three types of elements. Metals, such as sodium, calcium, and caesium, are found on the periodic table's far left side. The elements on the right side, on the other hand, are commonly referred to as non-metals, carbon, chlorine, oxygen, and so on. Metals and nonmetals are separated by metalloids, a diagonal line of elements. Metalloids include silicon, arsenic, antimony, and many others.
Metalloids are substances that have certain qualities in common with metals and others with nonmetals. As a result, they serve as a barrier between metals and non-metals.
They have the electronic band structure of a semimetal or semiconductor and are glossy, brittle solids with intermediate to reasonably strong electrical conductivity.
They generally act chemically as weak nonmetals, with intermediate ionisation energies and electronegativity values, and as amphoteric or weakly acidic oxides. Most of their other physical and chemical traits are intermediate.
Because metalloids are excessively brittle in their pure state, they have no structural utility.
As a result, they and their compounds are employed to create alloys, biological agents (toxicological, nutritional, and medicinal), catalysts, flame retardants, optical storage media and optoelectronics, pyrotechnics, semiconductors, and electronics.
Metalloids are listed in increasing atomic number order:
· Boron (B)
· Silicon (Si)
· Germanium (Ge)
· Arsenic (As)
· Antimony (Sb)
· Tellurium (Te)
Boron (B): Boron (B), a chemical element, semimetal of periodic table Group 13 (IIIa, or boron group), essential for plant growth and widely used in industry. Pure crystalline boron is a black, lustrous semiconductor, which means that it conducts electricity like a metal at high temperatures but is nearly an insulator at low temperatures.
Silicon (Si): Silicon (Si), is a chemical element in the carbon family that is nonmetallic (Group 14 [IVa] of the periodic table). Silicon constitutes 27.7 per cent of the Earth's crust; it is the second most prevalent element in the crust, after only oxygen.
Germanium (Ge): Germanium (Ge), a silvery-grey metalloid with characteristics midway between metals and nonmetals, are found in Group 14 (IVa) of the periodic table between silicon and tin.
Arsenic (As): Arsenic (As) is a chemical element that exists in both grey and yellow crystalline forms and belongs to the nitrogen group (Group 15 [Va] of the periodic table.
Antimony (Sb): Antimony (Sb) is a metallic element of the nitrogen group (Group 15 [Va] of the periodic table). Antimony occurs in a variety of allotropic forms (physically distinct conditions that result from different arrangements of the same atoms in molecules or crystals). Antimony is a glossy silvery bluish-white solid that is extremely brittle and flaky. It is mostly found as the grey sulphide mineral stibnite (Sb2S3).
Tellurium (Te): Tellurium (Te) is a semi-metallic chemical element in the oxygen group (Group 16 [VIa] of the periodic table), chemically and physically like selenium. Tellurium is a silvery white element having qualities midway between metals and nonmetals; it accounts for around one part of a billion of the Earth's crust. It, like selenium, is less commonly found uncombined than in metal compounds such as copper, lead, silver, or gold, and is primarily obtained as a by-product of copper or lead refining. Tellurium has no significant applications.
We have learned that metalloids are elements with metallic and non-metallic properties. This duality of their properties gives them the kind of molecule structure which makes them suitable for various uses.
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