1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Few simple questions about atomic structure and properties

  1. Mar 3, 2008 #1
    1. The problem statement, all variables and given/known data
    a)what property of graphite is the result of the presence of delocalized electrons?
    b)what is the reason for the generally low melting point of group I A metals as compared with the high melting points of metals in the center of the transition series?

    3. The attempt at a solution

    a) is it the layers?
    b)i thinks it the higher charge on the transition metals

    thanks in advance
  2. jcsd
  3. Mar 3, 2008 #2
    well, in graphite each carbon atom is bonded to three other carbon atoms forming layers of hexagonal rings. one valence electron is left out, which acts as a charge carrier in the lattice.

    in group 1 there is loosing packing and only 1 electron delocalised per atom. hence weak metallic bond. in transation metals d orbital electrons get delocalised as well, hence a stronger metallic bond.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Few simple questions about atomic structure and properties
  1. Atomic structure (Replies: 7)