As Metal or Nonmetal - 2017-2018 StudyChaCha

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Old September 13th, 2017, 03:40 PM
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Default As Metal or Nonmetal

Hi I would like to have the information about elements being metal or non metal as well as the details about its physical and chemical properties?
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Old September 13th, 2017, 04:33 PM
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Default Re: As Metal or Nonmetal

Elements might be named either metals or nonmetals, in light of their properties. Here's a gander at the contrasts between the metals and nonmetals.

Metals

Most elements are metals. This incorporates the salt metals, basic earth metals, change metals, lanthanides, and actinides. On the occasional table, metals are isolated from nonmetals by a crisscross line venturing through carbon, phosphorus, selenium, iodine and radon.

These components and those to one side of them are nonmetals. Components just to one side of the line might be named metalloids or semimetals and have properties middle of the road between those of the metals and nonmetals. The physical and concoction properties of the metals and nonmetals might be utilized to disclose to them separated.

Metal Physical Properties
lustrous (shiny)
good conductors of heat and electricity
high melting point
high density (heavy for their size)
malleable (can be hammered)
ductile (can be drawn into wires)
usually solid at room temperature (an exception is mercury)
opaque as a thin sheet (can't see through metals)
metals are sonorous or make a bell-like sound when struck

Metal Chemical Properties
have 1-3 electrons in the outer shell of each metal atom and lose electrons readily
corrode easily (e.g., damaged by oxidation such as tarnish or rust)
lose electrons easily
form oxides that are basic
have lower electronegativities
are good reducing agents

Nonmetals

Nonmetals, except for hydrogen, are situated on the correct side of the occasional table. Components that are nonmetals are hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur, selenium, the majority of the incandescent lamp, and the respectable gasses.

Nonmetal Physical Properties
not lustrous (dull appearance)
poor conductors of heat and electricity
nonductile solids
brittle solids
may be solids, liquids or gases at room temperature
transparent as a thin sheet
nonmetals are not sonorous

Nonmetal Chemical Properties
usually have 4-8 electrons in their outer shell
readily gain or share valence electrons
form oxides that are acidic
have higher electronegativities
are good oxidizing agents
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