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Video instructions and help with filling out and completing Where 8850 Form Certification

Instructions and Help about Where 8850 Form Certification

Their coffee or tea or bagel or cookies okay good morning everybody we have dealt with reciprocal space in the last couple of lectures today we will go a little bit further in that we will be talking about structure practice and you've seen that already on one of the handouts somewhere I think I promise you that we will get back to them so here we are structure factors are really a thing that allows you to get more than just a unit size the unit cell size or shape from your diffraction data so these are very important when it comes to actually getting a crystal structure once again we need to explain some convenient concepts but the good news is this is the last time that we have to do that okay so we're almost there originally we introduced the concept of reflection of excess from lattice planes right it was a nice concept because it allowed us to might come up with a very simple drawing and derive Bragg's law which describes to us where we see diffraction right so we could derive Bragg's law and we could actually explain where we saw the fraction the next thing that we introduced was we said okay it's not really a lattice plane right we get scattering from all of the atoms and what we kind of then did was we made a simplified view of things by saying okay we can consider all of those atoms kind of accumulated in the lattice point which is how we draw bright lettuces right where we have the dots at the corners at the Centers it doesn't mean that the atom has to sit at just much easier for us to see what the relationship between essences once again that...

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