6. Describe the electrons defined by the following quantum numbers: n l ml 3 0 0 3s electron or orbital 2 1 1 2p electron or orbital 4 2 -1 4d electron or orbital Read Online Atomic Structure Electron Configuration Answer Key Introduction to electron configurations (video) | Khan Academy Atomic Basics Answer Key Part A: Atomic Structure 1. Draw five protons in the nucleus of the atom. Label them with their charge. 2. Draw six neutrons in the nucleus of the atom. 3.