Using SPDF Notation, Write the Electron Configuration for Each of the Following Elements: A, B, Ca, Ge, Nd, Fm, and Cn

Here are the electron configurations in SPDF notation for the specified elements:

• A (Argon, atomic number 18): 1s² 2s² 2p⁶ 3s² 3p⁶
• B (Boron, atomic number 5): 1s² 2s² 2p¹
• Ca (Calcium, atomic number 20): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
• Ge (Germanium, atomic number 32): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p²
• Nd (Neodymium, atomic number 60): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f⁴
• Fm (Fermium, atomic number 100): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p¹
• Cn (Copernicium, atomic number 112): 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p²

Each element’s electron configuration is represented by the distribution of electrons in atomic orbitals, and we’ve followed the SPDF notation where ‘s’, ‘p’, ‘d’, and ‘f’ specify the type of orbitals filled in order of increasing energy levels based on the Aufbau principle.