METALS AND NON-METALS

Name: METALS AND NON-METALS
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Metallurgical Operations

Created byVinay Arya

Last updated 9/2019

English

English [Auto],

What you'll learn

Physical, Chemical Properties and Uses of Metals and non metals

Course content

1 section • 16 lectures • 2h 59m total length

3.1. CONTENTS11:02
the lecture introduces the contents of the metals and non-metals course, outlines the sequential topics from introduction to physical and chemical properties, extraction, corrosion, and prevention.
3.2 INTRODUCTION TO METALS11:59
Explore how metals form positive ions by losing electrons, exhibit malleability and conductivity, and sit on the left of the periodic table with hydrogen as an exception.
3.3. PHYSICAL PROPERTIES OF METALS12:22
Examine the physical properties of metals, including malleability, ductility, hardness, and lustre, and their thermal and electrical conductivity using common metals like copper, aluminum, silver, and gold.
3.4. USES OF SOME METALS9:59
Explore how metals such as aluminium, steel, zinc, platinum, gold, silver, and titanium are used in engines, construction, aerospace, and galvanization.
3.5. PHYSICAL PROPERTIES OF NON-METALS9:28
Explore the properties of non-metals across solid, liquid, and gas. Note their brittleness, low conductivity, low density, and dull surfaces, with graphite as conductor and iodine as a shiny exception.
3.6. CHEMICAL PROPERTiES OF METALS11:16
Explore how metals react with oxygen to form metal oxides, which are typically basic, with aluminum and zinc showing amphoteric behavior, and note protective oxide layers that limit corrosion.
3.7. REACTION OF METALS WITH WATER12:15
Learn how metals react with water to form metal hydroxides and hydrogen gas, and with acids to release hydrogen and form chlorides, noting vigorous alkali metal activity.
3.8. REACTION OF METALS WITH METAL SALT SOLUTIONS8:50
Explore displacement reactions in metal–salt systems, where a reactive metal displaces a less reactive metal from its salt solution, with copper displacing silver from silver nitrate but not vice versa.
3.9. OCCURRENCE OF METALS10:35
Discover how metals occur in the earth's crust, native and ore forms. Learn extraction from oxides, sulfates, and carbonates with examples like aluminium from bauxite and copper.
3.10. EXTRACTION OF METALS9:54
Explore how metals are extracted from ores through crushing, grinding, and ore enrichment in metallurgy, and apply hydraulic washing and magnetic separation to remove impurities and obtain metal.
3.11. CHEMICAL SEPARATION METHOD8:24
Apply the chemical separation method to extract metals from ores. Use leaching to dissolve aluminum oxide from bauxite with sodium hydroxide and precipitate aluminum hydroxide for metal recovery.
3.12. ROASTING10:29
Explore roasting as the extraction step that converts sulfides to metal oxides in the presence of air, releasing sulfur dioxide and setting up subsequent reduction with carbon.
3.13. REDUCTION WITH ALUMINIUM12:31
Reduce metal oxides with aluminium using the thermite process, producing iron and other metals for railway track repair, while also introducing electrolysis for extracting aluminium from aluminium oxide.
3.14. REFINING OF METALS13:18
Purify metals through refining, removing impurities by distillation, oxidation, and electrorefining. Explore copper refining via anode dissolution and cathode deposition in electrolysis.
3.15. CORROSION METALS13:21
Explore corrosion, the slow oxidation of metals by oxygen and moisture; distinguish it from rusting and learn prevention via painting, grease coatings, and galvanization with zinc or magnesium.
3.16. PREVENTION OF CORROSION13:33
Explore prevention of corrosion by using protective oxide layers, galvanic protection, and alloy design to extend metal life, including zinc oxide, aluminium oxide, and stainless steel alloys.
Innovation

Requirements

Basics of Metals and non metals

Description

This Course deals with the Extraction of Metals and Non Metals, Physical and Chemical Properties of Metals and Non Metals and Uses of Metals and Non Metals.The elements which are quite reactive and have a tendency to react with moisture, carbon dioxide, oxygen, sulphur, halogens, etc., are found in combined state. Most of the metals are found in the combined state as minerals.

All the materials around us are made up of chemical elements, which are found in the earth’s crust. Earth is the source of coal, petroleum, graphite, diamond and many other minerals of metals and non-metals. We get various useful things like gasoline, kerosene, wax, coal gas, minerals and rocks in the natural resource, which are made up of many non-metals. These elements occur as minerals and rocks in the earth’s crust. Some of these elements like oxygen, nitrogen and carbon dioxide occur in atmospheric air.

There are more than 119 element known at present 80% of these elements are metals and rest are non – metals. On the basis of their characteristic properties, all of these elements are divided into two main groups : metals and non-metals.

POSITION OF METALS AND NON-METALS IN THE PERIODIC TABLE

The elements which are placed on the left hand side (except hydrogen) and in the center of the periodic table are called metals. Such as sodium, potassium, magnesium, calcium, iron, copper, zinc etc.

Who this course is for:

Beginners and 10 grade students