Following are several stereorepresentations for lactic acid. Use (a) as a reference

Pink- mentioned in class Chem Notes Week 10 TEXTBOOK CHAPTER 7 (continued sections 7.5-7.8) Periodic Properties of the Elements Electron affinity (7.5)  All ionization energies for atoms are positive. Energy must be absorbed to remove an electron  It is more favorable the more negative it is, the greater the electron affinity  Electron affinity: the energy change upon adding an electron to an atom in the gas phase (forming anion), measures the attraction of the added electron  Exothermic  Most atoms, energy is released when an electron is added (mostly negative)  Ionization energy measures the energy change when an atom loses an electr