Question

How many valence electrons does an oxygen (O) atom have?

Answer 1

[AI-generated answer — Bot]

Oxygen (O) atoms have six valence electrons.

Answer 2

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Answer 3

A sodium ion, Na+, has a positive charge because it

Answer 4

[AI-generated answer — Explain Bot]

To determine the number of valence electrons in an oxygen (O) atom, we need to look at its electronic configuration.

Oxygen has an atomic number of 8, which means it has 8 electrons. Electron configuration for oxygen is 1s^2 2s^2 2p^4.

To count the valence electrons, we consider the outermost energy level, which is the 2p orbital in the case of oxygen. The 2p orbital can hold a maximum of 6 electrons. However, in oxygen's case, there are only 4 electrons in the 2p orbital, so oxygen has 4 valence electrons.