Silver

Subject: Science

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Overview

Silver is the ‘d’ block transition element. It belongs to the group IB of the periodic table. This topic contains the short introduction on silver and its properties and uses.
Silver

Symbol: Ag
Atomic No: 47
Atomic weight: 107.88
Valency: 1
Electronic configuration: 1s2,2s2,2p6,3s2,3p6,3d10,4s2,4p6,4d10,5s1
Position in the periodic table:

Silver is the "D" block transition element. It belongs to the group IB of the periodic table.

Some important ores of silver

  1. Argentite
  2. Horn silver
  3. Silver copper glance
  4. Pyrolite

Properties of silver

Physical properties

  1. Silver is white lustrous metal.
  2. Its specific gravity is 10.52.
  3. Its melting point is 9600C and boiling point is 21620C.
  4. It is a good conductor of heat and electricity.
  5. It is malleable and ductile in nature.

Chemical properties

Action with acids

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  1. Silver does not react with dilute hydrochloric acid and dilute sulphuric acid but it reacts with hot concentrated sulphuric acid and this reaction gives sulphur dioxide water and silver sulphate.
  2. Silver reacts with both dilute and concentrated nitric acid to form silver nitrate.

    3Ag + dil.4HNO3 → 3AgNO3 + 2H2O + NO

    Ag + conc.2HNO3 → AgNO3 + H2O + NO2

  3. Silver reacts with hot and concentrated hydrochloric acid only in the presence of oxygen and it forms silver chloride.

    4Ag + conc. 4HCl + O2 → 4AgCl + 2H2O

Uses of silver

  1. It is used to makecoins,jewelry and decorative articles.

    http://3.bp.blogspot.com/-OQWkzknEvpQ/TdiwMyooP5I/AAAAAAAAABM/5y_dYT4cj7w/s1600/R16440SZ140.jpg

    http://www.silver-coin-investor.com/images/iStock_000005558311Medium_4_1_1.jpg

  2. Silver bromide is used in photography. It is used in electroplating.

    http://www.ustudy.in/sites/default/files/Electroplating-of-silver.PNG

    https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcRlylKOJl6iJqalUuQxl7TFPpdcLp6UyDlCAqk4kC6REdqwyfCwZA

Things to remember
  • Silver is the ‘d’ block transition element. It belongs to the group IB of the periodic table.
  • The important ores of silver are argentite, horn silver, silver copper glance, pyrolite, etc.
  • Silver is used for making coins, jewelry and decorative articles.
  • Silver bromide is used in photography. It is used in electroplating.
  • The physical properties of silver are white lustrous metal, good conductor of heat and electricity, malleable and ductile in nature,  melting point is 9600C and boiling point is 21620C
  • Silver does not react with dilute hydrochloric acid and dilute sulphuric acid but it reacts with hot concentrated sulphuric acid and this reaction gives sulphur dioxide water and silver sulphate.Silver reacts with both dilute and concentrated nitric acid to form silver nitrate.
  • Silver reacts with hot and concentrated hydrochloric acid only in the presence of oxygen and it forms silver chloride.
  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
Videos for Silver
Reaction of silver with HNO3
Silver - The Element of Change
Silver Element ***
Silver Mining Process / How is Silver Bullion Mined? / Discovery Channel
Questions and Answers
The names of two ore minerals of silver are: Argentite (Ag2S) and silver copper glance [(AgCu2)2S]
Silver and copper metals can be extracted from the ores of Argentite and chalcopyrite respectively.

When silver is heated with bromine, it gives silver bromide. 2Ag + Br2 → 2Ag Br

Silver is rarely found in nature. Its extraction and purification is also harder than other metals. It has better shine and maliability than other metals.

Silver is metal, because

  1. Silver is good conductor of heat and electricity.
  2. Silver is malleable and ductile.

Any two properties of silver are as follows:

  1. In the presence of oxygen it reacts with concentrated hydrochloric acid to form silver chloride.
    3Ag + conc. 4HCl +O2 → 4AgCl + 2H2O
  1. Silver reacts with concentrated sulphuric acid, it gives silver sulphate and sulphur dioxide gas.
    3Ag + conc. 4H2SO4 → Ag2SO4 + SO2 + 2H2O
Quiz

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