Define metals, non-metals and metalloids. Give one example of each.
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Metals are materials holding or possessing the characteristics of being shiny, hard, fusible, malleable, ductile, etc. Few examples of metals (materials) are – Gold, Silver, Aluminium, Copper, Iron, etc.
Non-metals are the elements that do not conduct heat and electricity and are either malleable nor ductile. Example: carbon, sulphur, phosphorus, silicon, oxygen, etc.
Definition for metalloids: elements with properties intermediate between metals and nonmetals. Boron, silicon, germanium, arsenic, antimony, tellurium, and polonium are metalloids. ... Metalloids tend to be semiconductors; silicon is the best known example of a semiconductor.
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A metalloid is a chemical element that exhibits some properties of metals and some of nonmetals. ... Boron, silicon, germanium, arsenic, antimony, tellurium, and polonium are metalloids. In some cases, authors may also class selenium, astatine, aluminum, and carbon as metalloids, but this is less common.
Elements: Germanium; Polonium; Silicon; Selenium.
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