Chapter Name : The P- Block Elements |
Sub Topic Code : 102_12_07_18_01 |
Topic Name : Group 17 Elements |
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Sub Topic Name : Occurrence |
• A particular element may occur in various forms. • A few elements like carbon, sulphur, gold and noble gases, occur in Free State while others in combined forms in the Earth’s crust. • The entire scientific and technological process used for isolation of the metal from its ores is known as metallurgy.
Periodic table, elements,
Different metallic objects.
How are metals taking out from the earth?
Key Words | Definitions (pref. in our own words) |
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Metallurgy | Method of extraction of metals. |
Gadgets | How it can be used |
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Iron chain, copper bowl | How are these made? |
Metals are used in many places.
Kitchen.
Examples | Explainations |
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• A particular element may occur in various forms • A few elements like carbon, sulphur, gold and noble gases, occur in Free State while others in combined forms in the Earth’s crust. The entire scientific and technological process used for isolation of the metal from its ores is known as metallurgy.
• A particular element may occur in various forms • A few elements like carbon, sulphur, gold and noble gases, occur in Free State while others in combined forms in the Earth’s crust. The entire scientific and technological process used for isolation of the metal from its ores is known as metallurgy.
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