Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Get quick and reliable answers to your questions from a dedicated community of professionals on our platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

Potassium, atomic number 19, does something that the previous 18 elements do not do?
a. its last electron goes in the 4s rather than the 3rd orbital
b. it is the only element that has no electrons
c. it has 3 electrons in the first energy level
d. it completely fills all of its orbitals in all eneryg levels