How do you find out the electron configuration?
the number of electrons belonging to an element is the atomic number. The electron configuration is the way they are arranged around the nucleus. For example the inner shell can only hold 2 electrons and from then on, each additional shell can hold 8 electrons. Oxygen has 8 electrons so the electron arrangement would be 2.6 (2 on the inner shell, 6 on the outer shell. Potassium has 19 electrons so the electron arrangement would be 2.8.8.1 (2 on the inner shell, 8 on the next, 8 on the next, 1 on the outer shell) Hope this is helpful!
