What is the electron configuration of an element with atomic number 20? A. 1s^2 2s^2 2p^6 3s^2 3p^5 B. 1s^2 2s^2 2p^6 3s^2 3p^6 C. 1s^2 2s^2 2p^6 3s^2 D. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 E. 1s^2 2s^2 2p^6 - Qammunity

What is the electron configuration of an element with atomic number 20? A. 1s^2 2s^2 2p^6 3s^2 3p^5 B. 1s^2 2s^2 2p^6 3s^2 3p^6 C. 1s^2 2s^2 2p^6 3s^2 D. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 E. 1s^2 2s^2 2p^6

asked Aug 11, 2021 104k views

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