[DSE Chemistry] Metals: Empirical formula of covalent molecule – VIDEO

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Video Title – [DSE Chemistry] Metals: Empirical formula of covalent molecule
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Lesson 7.2.1: The Atomic Structure Metals – VIDEO



In this video you will begin learning about the metals on the periodic table of elements. Specifically, this video will teach you about the structure of metallic elements, and the next video will explain how their structure causes their properties. Pay attention to learn how metallic bonds hold atoms of metals together.

Link to 7.2.2 Video

https://youtu.be/h40KOCi0jUs

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Video Keyword – and bond structure of materials
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Video Title – Lesson 7.2.1: The Atomic Structure Metals
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Electrolytic Refining of Metals – VIDEO



Our topic for today is Electrolytic Refining of Metals.
Electrolytic refining is the process of obtaining pure metals like gold, silver, copper etc. by the process of electrolysis.
Let us learn how copper is refined electrolytically.
Take acidified copper sulphate solution as the electrolyte.
Take a thick rod of impure copper and a thin rod of pure copper.
Make impure copper as the anode and pure copper as the cathode.
When current is passed through the solution, the CuSO4 electrolyte splits into copper ions and sulphate ions.
The copper ions from the electrolyte get attracted towards the cathode.
The copper ions gain 2 electrons from the cathode and deposit as pure copper atoms on the thin copper rod.
At the same time, the copper atoms from the anode lose 2 electrons, convert into copper ions and dissolve in the electrolytic solution.
In this way, indirectly, copper atoms from the anode deposit on the cathode.
Hence, size of anode decreases and size of cathode increases.
In this way, all the pure copper from the anode deposits on the cathode.
The impurities in the impure copper rod settle down as anode mud at the bottom of the container.

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Video Keyword – and bond structure of materials
Atomic
Video Title – Electrolytic Refining of Metals
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  • Copper, Silver, Gold (Part 2) June 5, 2013
    Copper Continued! Ductility: Copper is FCC, as discribed above. The classic slip plane for this system is the {111} slip system, which I bet no-one here knows, but you will know after you look at this picture. Essentially, individual copper atoms will slide across other copper atoms in a very specific direction in the crystal structure (follow the arrows). I […]
    /u/terevos2


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Metals & Nonmetals: Difference Between Metal, Non Metal & Metalloids – Class 8th – 01/13 – VIDEO



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Video Title – Metals & Nonmetals: Difference Between Metal, Non Metal & Metalloids – Class 8th – 01/13
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They Come From The Fiery Heart Of The Cosmos – Heavy Metals Documentary – National TV – VIDEO



They Come From The Fiery Heart Of The Cosmos – Heavy Metals Documentary – Films

A metal is a product (a component, substance, or blend) that is commonly tough, opaque, shiny, and also has great electrical as well as thermal conductivity. Metals are normally malleable– that is, they can be hammered or pressed completely unfit without breaking or cracking– along with fusible (able to be merged or melted) as well as ductile (able to be extended into a thin cable). [3] Regarding 91 of the 118 elements in the periodic table of elements are metals (some components appear in both metallic as well as non-metallic forms).

The meaning of “steel” varies for numerous communities. As an example, astronomers use the blanket term “metal” for benefit to jointly describe all elements apart from hydrogen and helium (the primary components of superstars, which in turn form a lot of the noticeable concern in the universe). Thus, in astronomy and bodily cosmology, the metallicity of an item is the percentage of its issue composed of chemical aspects other than hydrogen as well as helium. [4] Additionally, numerous elements and also substances that are not typically classified as steels come to be metallic under pushy; these are formed as metal allotropes of non-metals.

The atoms of metal materials are carefully positioned to surrounding atoms in one of two common arrangements. The first arrangement is referred to as body-centered cubic. In this plan, each atom is positioned at the facility of eight others. The other is known as face-centered cubic. In this setup, each atom is positioned in the center of 6 others. The continuous plan of atoms in these frameworks develops a crystal. Some steels take on both structures relying on the temperature. [5]
Atoms of metals readily lose their outer shell electrons, resulting in a cost-free streaming cloud of electrons within their or else solid arrangement. This gives the capacity of metal materials to quickly transmit heat and also electrical energy. While this circulation of electrons occurs, the solid characteristic of the metal is produced by electrostatic interactions between each atom and the electron cloud. This type of bond is called a metallic bond.

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