What is energy level or orbit? Md. Saifur Rahman In an atom, around the nucleus, there are some circular stable axes on which electron moves around. They are called energy level or orbit.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?