Science, asked by shinaleopard754, 5 months ago

Write down the differences in physical and chemical properties of metals and non metals.
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Answers

Answered by Anonymous
2

Metal's Physical Properties:

They are lustrous (shiny surface).

They are good conductors of heat and electricity.

They have high density and high melting point.

They are malleable (can be hammered into sheets) and ductile (can be stretched into wires).

They are usually solid at room temperature except for mercury.

They are opaque so one cannot see through metals.

They are sonorous as they make a bell-like sound when hit with an object.

Metal's Chemical Properties:

They generally have 1 to 3 valence electrons in the outermost shell of their atoms.

They corrode easily so can be easily damaged by oxidation, e.g. rusting of iron.

They generally form metal oxides, which are basic in nature, by reacting with oxygen.

They tend to lose electrons easily to form positively charged ions (cations).

They are good reducing agents.

Nonmetal's Physical Properties:

They are not lustrous.

They are poor conductors of heat and electricity.

They are not ductile so cannot be stretched into wires.

They are not malleable so cannot be beaten into sheets.

They are not sonorous and transparent.

Nonmetal's Chemical Properties:

They generally have 4 to 8 valence electrons in the outermost shell of their atoms.

They tend to gain valence electrons to form negatively charged ions (anions).

They react with oxygen to form acidic or neutral oxides.

They are good oxidizing agents.

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