GKFix MCQ Question

What is the energy of the electron in the ground state (n=1) of a hydrogen atom in Joules?

• A. -2.18 × 10⁻¹⁸ J
• B. -1.6 × 10⁻¹⁹ J
• C. -13.6 J
• D. -3.2 × 10⁻¹⁹ J