Metallic Solids

024 - Metallic Solids
In this video Paul Andersen explains how metallic solids form when delocalized electrons hold the positive nuclei in an electron sea. This model helps to explain the properties of metals like conductivity, shiny appearance, malleability, ductility, and the ability to form alloys. Alloys can be substitutional or interstitial in nature and can change the chemistry of the metal.
Music Attribution
Title: String Theory
Artist: Herman Jolly
sunsetvalley.ba...
All of the images are licensed under creative commons and public domain licensing:
1791Rings. English: L'Amour Diamond Engagement Ring Made by 1791 Diamond. This Beautiful Heart Shape Diamond in 18kt White Gold Represents the Essence of Love and the Ultimate Display of Romance., September 14, 2012. Own work. commons.wikimed....
"File:A Plug.jpg." Wikipedia, the Free Encyclopedia. Accessed August 15, 2013. en.wikipedia.or....
"File:Born Bronze - Bronze Casts.jpg." Wikipedia, the Free Encyclopedia. Accessed August 18, 2013. en.wikipedia.or....
"File:Brass.jpg." Wikipedia, the Free Encyclopedia. Accessed August 18, 2013. en.wikipedia.or....
"File:Gallium Crystals.jpg." Wikipedia, the Free Encyclopedia. Accessed August 13, 2013. en.wikipedia.or....
"File:Gold-49956.jpg." Wikipedia, the Free Encyclopedia. Accessed August 18, 2013. en.wikipedia.or....
"File:Histamenon nomisma-Alexius I-sb1776.jpg." Wikipedia, the Free Encyclopedia. Accessed August 18, 2013. en.wikipedia.or....
"File:Kanazawa Gold Factory.jpg." Wikipedia, the Free Encyclopedia. Accessed August 15, 2013. en.wikipedia.or....
"File:St Louis Night Expblend Cropped.jpg." Wikipedia, the Free Encyclopedia. Accessed August 18, 2013. en.wikipedia.or....
Wasapl. English: A Typical Smithy in Finland. Shot During a Tourist Trip to Artist Blacksmith Jesse Sipola's Smithy Next to Lake Bodom. Tourist Working to Aid the Smith in Smithing by Using a Sledge., September 7, 2011. Own work. commons.wikimed....

[@blaknite16523]

I can't believe how much learned and understood in just 4 minutes.

[@sciencenerd7639]

This is neat. I wonder why my teachers back in high school and college didn't teach this stuff. Some of my teachers were decent but for some reason metals were not covered this well.

[@ayesha1341]

A time saving video! So much in just 4 min :D

[@kgigjdjsuazhzhsnjszs]

I was taught that when the interstices of metal solids are filled by small mass atoms like carbon that the overall density decreases not increases as you said, since adding the atoms in those holes increases the overall volume

[@popcorncat123454321]

i was taught that too. sorry this comment was like 2 years ago lol but thanks

[@DrShivaniShende]

you r such a great teacher Mr.Anderson! thank u for all ur videos!
juz one thing , how is the sea of electrons actually forming.. is it juz tht metals r electropositive n so the outermost electrons juz break off?

[@draspirin7944]

good collection.....

[@AnkushGoyat]

his explanation is awesome

[@stevenwalker4939]

Shivani Shende I

[@sahil30]

Most metals tend to form cations, since they usually have some extra electrons and they want to get rid of them. So when a metallic bond is formed, these extra electron turn into free electrons and each metallic atom has these extra electrons so when the bond is formed these extra electrons turn into free electrons and a sea of free electrons is formed.

[@chemistryamazingworld]

nice

[@joemillard787]

Carbon in an iron lattice prevents dislocations from propagating which relieve stress and cause the metal to bend rather than break.

[@bakhtshad12]

Sir why metals are shiny? As these electrons are free and delocalized so how they move to higher energy levels.

[@mrellioto4538]

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[@Dr_Asma_physio]

Very good explanation at all!......only positive ions form the structure of metal ??positive ions aren't stable enough!....aren't they??

[@Skutieos7]

Thank you so much for making chemistry videos!

[@SwagMan44]

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[@Simaisan]

I really struggle to understand the idea of an electron sea model, what is it exactly ? How is it possible ? I would like something like a really detailled explanation on that.
Thank you for posting all these great videos !

[@Bokskorpion1]

I really like your videos, they (you) help me a lot!

[@sauravdutta6116]

Thanks

[@AimanM]

Really helpful =)

[@benjamingoodyear1221]

yes

[@Daniel-ci6co]

who here from hoehn

[@drduri7015]

Tnx

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Repulsion chemical name sir

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hmm good

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[@mikealphonsus]

rubbish

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