GRE Subject 2026 Practice Test Physics Atomic Physics Free Quiz 1

1. What does atomic physics study?

A. Atoms and electron arrangement B. Atomic nuclei C. Motion of objects D. Electricity and magnetism

2. What model describes electrons in orbitals?

A. Bohr B. Rutherford C. Thomson D. Quantum mechanical

3. What model has electrons embedded in a positive sphere?

A. Thomson B. Rutherford C. Bohr D. Quantum mechanical

4. What quantum number determines the energy level?

A. l B. m_l C. n D. m_s

5. What quantum number determines the shape of the orbital?

A. n B. m_l C. m_s D. l

6. What quantum number determines the spin of the electron?

A. m_s B. n C. l D. m_l

7. What shape is the s orbital?

A. p B. d C. s D. f

8. What shape are the p orbitals?

A. s B. d C. f D. p

9. What orbitals are even more complex?

A. f B. s C. p D. d

10. What principle states that electrons fill orbitals from the lowest energy?

A. Pauli exclusion principle B. Hund's rule C. Octet rule D. Aufbau principle