Element | Electron Configuration | Number of Valence Electrons Sodium (Na) | 1sĀ² 2sĀ² 2p? 3sĀ¹ | A Oxygen (O) | 1sĀ² 2sĀ² 2p? | B Iron (Fe) | 1sĀ² 2sĀ² 2p? 3sĀ² 3p? 4sĀ² 3d? | C
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Valence electrons are the electrons in the outermost shell (energy level) of an atom. They are important because they determine how an atom can interact or bond with other atoms. Show moreā¦
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