ponder Question 20 8 pts Imagine you become and incredibly small individual (say, the size of an electron). You decide to penetrate a Fluorine atom and fly around on top of one of the electrons at the outer levels, In 2D, fluorine has a primitive cubic lattice. The lattice parameter of fluorine is 550 pm. Suppose the electron travels 60 parallel to the positive horizontal direction. a) Find the energy at which you and the electron will be pushed back. (4 pts.) b) Explain why you and the electron were pushed back and relate this phenomenon to the behavior of materials in real life. (4 pts.) D 39:11 / 43:54 V