PCOL2605 Lecture Notes - Lecture 2: Hydrogen Bond, Electronegativity, Covalent Bond

• School: University of Sydney
• Department: Pharmacology
• Course: PCOL2605
• Professor: Brooke Storey Lewis

Document Summary

Solids advanced 1 different types of solid form. Type of strong dipole-dipole bond typically highly polar covalent bonds between hydrogen and very electronegative atoms. + and ends of the two different molecules attract each other. Van der waals; forces of attraction which exist between all atoms and molecules. Crystalline solids are solid materials which basic constituents such as atoms, ions and molecules are arranged in a highly ordered and well-defined microscopic structure; crystal lattice. The lattice structure gets extended in all directions. A(cid:374) o(cid:396)de(cid:396)l(cid:455) (cid:858)i(cid:374)fi(cid:374)ite(cid:859) a(cid:396)(cid:396)a(cid:374)ge(cid:373)ent of molecules or atoms in a solid. Amorphous solids may display some finite order in terms of the arrangement of its atoms, ions and molecules, it will clearly lack the long-range ordered structure that a crystalline solid exhibits. A solid having no long range ordered arrangement. Need to make sure it doesn"t (cid:272)onvert (cid:271)a(cid:272)k to (cid:272)rystalline in transportation storage.