Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Moving around of valence electrons of metals
r15h4bh
Harmless
*




Posts: 16
Registered: 19-12-2012
Member Is Offline

Mood: No Mood

[*] posted on 25-12-2012 at 22:27
Moving around of valence electrons of metals


"The valence electrons can move around easily from one atom to another. These mobile electrons carry heat and electricity. Hence metals are good conductors."

How can valence electrons simply move from one atom of the metal to another atom of the metal?! They're talking about when it's not formed a compound right?
View user's profile View All Posts By User
D-glucose
Harmless
*




Posts: 12
Registered: 15-12-2012
Member Is Offline

Mood: No Mood

[*] posted on 25-12-2012 at 23:38


edit: I was wrong.

[Edited on 26-12-2012 by D-glucose]
View user's profile View All Posts By User
Oscilllator
International Hazard
*****




Posts: 659
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline

Mood: No Mood

[*] posted on 26-12-2012 at 00:05


Quote: Originally posted by D-glucose  
Hey, I like your enthusiasm for chemistry! But try not to flood the message board too much. research metallic bonding (orbitals also), It'll clear it up. Put simply, metals tend to covalently share electrons in a lattice of atoms allowing electrons to flow freely around the central nucleus.


I'm pretty sure the electrons aren't shared covalently, otherwhise you wouldget a covalent molecular lattice e.g. diamond, quartz.

@r15, yes they are talking about when It isn't in a compound.
The reason the electrons can move between the atoms is because the electrons are only weakly held by the atoms, they can move freely between them.




View user's profile View All Posts By User
r15h4bh
Harmless
*




Posts: 16
Registered: 19-12-2012
Member Is Offline

Mood: No Mood

[*] posted on 26-12-2012 at 00:08


I know I made a lot of threads, it's just that I've always been weak in Chemistry even though I love it so I have holidays and I'm trying to go a bit back and sort out some basics. I always search the net for answers before asking a question but the net doesn't cater to an individual's level of understanding, so if I go to Wikipedia or something then the complexity of the Wiki's just loses me at the first paragraph :( So I just want to clear things up and if it's above my level then I don't mind leaving it for later as otherwise I'd just be more confused. And I tend to have a lot of doubts :P

So from what I understood, it's like the valence electrons are shared among all the atoms?
View user's profile View All Posts By User
D-glucose
Harmless
*




Posts: 12
Registered: 15-12-2012
Member Is Offline

Mood: No Mood

[*] posted on 26-12-2012 at 00:18


You're right, oscillator, what was i thinking :(:o any way here is a cool link http://en.wikipedia.org/wiki/Metallic_bond
View user's profile View All Posts By User
platedish29
Hazard to Self
**




Posts: 76
Registered: 2-9-2012
Member Is Offline

Mood: absorbing CO2

[*] posted on 29-12-2012 at 20:27


Just get used to the fact electrons ceases to exist.
View user's profile View All Posts By User
Hexavalent
International Hazard
*****




Posts: 1564
Registered: 29-12-2011
Location: Wales, UK
Member Is Offline

Mood: Pericyclic

[*] posted on 30-12-2012 at 05:14


In metals, the electrons are delocalised and form 'seas' of electrons. Each electron does not 'belong' to a specific atom. This actually results in metal ions being formed, but they are attracted very strongly towards the free electrons, meaning a great deal of energy is required to break said bond, equating to a (generally) high melting point and boiling point.

These delocalised electrons are free to move around, and thus can conduct an electric current. Equally, as they are free to move around, they can carry kinetic energy, and therefore conduct thermal energy too (by the electrons pounding into one another repeatedly, carrying their energy over the entire 'sea').




"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
View user's profile View All Posts By User

  Go To Top