Looking for trustworthy answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

What is the electron configuration of a ground-state Cu atom? Select one:
A. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰
B. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 4d⁹
C. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹
D. 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰
E. 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 4d¹⁰