Selenium was a normal element, but always seemed to be missing something. As she had not yet found an element to complete her octet rule, she began to wonder. Could Calcium, her crush in 4th period, be the answer? What about the other side to her love triangle, Lithium? Does he offer enough? Selenium played by Selena Gomez Calcium played by Calum Hood Lithium played by Liam Payne