CH 301 Study Guide - Midterm Guide: Lattice Energy, Covalent Bond, Paramagnetism
Document Summary
Remove e- to make monatomic cations ex: fe remove 2e- -> fe+2. For every transition metal, you remove an electron from the 4s orbital before the 3d orbital. Completely and half full p"s and d"s have special stability. Always remove the s electrons before the d electrons when making a transition metal. All elements try to get noble gas e- con guration. Lattice energy is proportional to q(cation)q(anion) / r (distane btwn nuclei) q+q- / r. High lattice energy = really hard to disolve in water. Charge density= charge/volume (proportional to radius3) -> q/r (great for thinking about lattice energies. Covalent -> sharing e- pair(s) btwn 2 non-metals this helps each element reach that special stable e- con guration of a noble. This is how we have the octet rule-> way more of a guideline than a rule. Valence e- = s + p (outermost lled/partial lled) Ch 301 exam 2 review, intro to covalent bonding.
