QuestionAugust 2, 2025

What is the electron configuration for oxygen, O? 1s^22s^22p^3 1s^22s^22p^63s^2 1s^22s^22p^4 1s^22s^22p^63s^2

What is the electron configuration for oxygen, O? 1s^22s^22p^3 1s^22s^22p^63s^2 1s^22s^22p^4 1s^22s^22p^63s^2
What is the electron configuration for oxygen, O? 1s^22s^22p^3 1s^22s^22p^63s^2 1s^22s^22p^4 1s^22s^22p^63s^2

Solution
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Answer

1s^{2}2s^{2}2p^{4} Explanation 1. Determine the Atomic Number Oxygen has an atomic number of 8, meaning it has 8 electrons. 2. Fill Electron Orbitals Electrons fill orbitals in the order of increasing energy: 1s, 2s, 2p. 3. Assign Electrons to Orbitals Distribute 8 electrons: 1s^2 (2 electrons), 2s^2 (2 electrons), 2p^4 (4 electrons).

Explanation

1. Determine the Atomic Number<br /> Oxygen has an atomic number of 8, meaning it has 8 electrons.<br /><br />2. Fill Electron Orbitals<br /> Electrons fill orbitals in the order of increasing energy: $1s$, $2s$, $2p$. <br /><br />3. Assign Electrons to Orbitals<br /> Distribute 8 electrons: $1s^2$ (2 electrons), $2s^2$ (2 electrons), $2p^4$ (4 electrons).
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