Question

what is the difference between metals and nonmetals? what is the difference between physical state of metals and non metals at the room temperature ?what is the occurrence of metalloids such as hydrogen Nitrogen Oxygen carbon Silicon sulphur

Answer 1

(1). While metals are good conductors of electricity and heat, non-metals are poor conductors. Unlike non-metals,metals are ductile, which means they can be stretched into wires. Anotherdifference between metals and non-metals, is that the former has a metallic luster, while the other does not.

(2).Metals, except mercury & gallium are solids at room temperature while non-metals , except bromine are solids or gases at room temperature. Metals are lustrous while non-metals, except diamond & graphite which are allotropes of carbon as well as iodine, are non-lustrous.

(3).A metalloid is any chemical element which has properties in between those of metalsand nonmetals, or that has a mixture of them. There is neither a standard definition of a metalloid nor complete agreement on the elements appropriately classified as such. Despite the lack of specificity, the term remains in use in the literature of chemistry.

The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. Five elements are less frequently so classified: carbon, aluminium, selenium, polonium, and astatine. On a standard periodic table, all eleven are in a diagonal area in the p-block extending from boron at the upper left to astatine at lower right, along the dividing line between metals and nonmetals shown on some periodic tables.

Answer 2

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