Giant Covalent structures and metallic bonding by LOPA BHATT https://padlet.com/lbhatt/3fwmwaqfluj9 structure and bonding en-us 2019-02-03 07:17:36 UTC 2024-11-28 14:28:05 UTC hello@padlet.com Your Task ( Amer and Sara) lbhatt https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025637 Describe the structure.
Include diagrams
Explain electrical conductivity, thermal conductivity, appearance,
special properties and uses
Include 5 questions for a quiz or include past paper questions.]]> 2019-02-03 07:23:45 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025637 Your Task ( Sharman and Idres) lbhatt https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025773 Describe the structure.
Include diagrams
Explain electrical conductivity, thermal conductivity, appearance,
special properties and uses
Include 5 questions for a quiz or include past paper questions.]]> 2019-02-03 07:26:01 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025773 Your Task( ( Advik ) lbhatt https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025784 Describe the structure.
Include diagrams
Explain electrical conductivity, thermal conductivity, appearance,
special properties and uses
Include 5 questions for a quiz or include past paper questions.]]> 2019-02-03 07:26:14 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/327025784 Structure of Graphite shuklasharman06 https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441445646 2020-02-06 10:27:53 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441445646 Description of Graphite shuklasharman06 https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441445841 As each carbon atom has four valence electrons, this leaves one unattached electron for each carbon atom. These delocalised electrons are able to move relatively freely between the layers of strongly bonded carbon atoms, and explains why graphite is such a good conductor of electricity. With only weak dispersion forces holding the layers of carbon atoms together, it is easy for one layer to slide past another, explaining the lubricant properties of graphite. Because the bonding within the layers is very strong, graphite has the very high melting point of 3730°C and so can readily be used as a lubricant. Graphite exists as a covalent layer lattice. In this structure each carbon atom is bonded to only three others in a series of hexagons that make up a layer. Graphite has sp2 hybridisation.]]> 2020-02-06 10:28:27 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441445841 Silicon Structure https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441446095 - 3D network of covalent bonds
- Tetrahedral
- Semi conductors

]]> 2020-02-06 10:29:19 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441446095 Diamond https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441446710 2020-02-06 10:31:17 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441446710 https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447098 2020-02-06 10:32:27 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447098 Fullerene Structure https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447208 Also commonly known by its superior name "Buckyballs"]]> 2020-02-06 10:32:45 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447208 Silicon Dioxide https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447336 2020-02-06 10:33:06 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441447336 Description of Graphene structure https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441448320 A two dimensional carbon allotrope that is positioned  in a hexagonal design.]]> 2020-02-06 10:36:15 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441448320 Questions on Graphite shuklasharman06 https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441448775 1. Which allotropes contain Carbon atoms with sp2 hybridization?
I.       Diamond
II.      Graphite
III.     C60 Fullerene
A.      I and II only                                  B.      I and III only
C.      II and III only                               
D.      I, II and III

2. Explain why Graphite and C60 Fullerene can conduct electricity.

3. Compare the bonding in diamond and graphite.

]]> 2020-02-06 10:37:50 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441448775 Graphene structure https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441450666 2020-02-06 10:43:26 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441450666 Electrical Conductivity https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441450859 2020-02-06 10:44:01 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/441450859 Graphene's thermal conductivity https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442639806 The carbon is considered to be a excellent example of a heat conductor due to the sp2 covalent bond it has in its structure through quadratic dispersion of graphene’s lattice vibrational modes which is another way of saying that it allows extremely high phonon transmissions through its lattice.]]> 2020-02-09 05:00:53 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442639806 Graphene's electrical conductivity https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442640681 Carbon atoms have a total of 6 electrons, 2 in the inner shell and the other 4 on the outer shell. in graphene each atom is connected to 3 other carbon atoms on the two dimensional plane, the pi electrons for electronic conduction by enhanching the carbon to carbon bonds in graphene, therefore allowing it to have very high electrical conductivity. They are found  above and below the graphene sheet.]]> 2020-02-09 05:09:57 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442640681 Properties of graphene https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442643816 Graphene has properties that ]]> 2020-02-09 05:46:46 UTC https://padlet.com/lbhatt/3fwmwaqfluj9/wish/442643816