To determine the number of unpaired electrons in a Sulfur atom in its ground-state, let’s first write its electron configuration.
Ground-state means that Sulfur is in its lowest energy form (not in excited state). Sulfur also has no charge (neutral element) which means that no electrons are removed or added in the atom.
Neutral element: Atomic number = # protons = # of electrons
How many unpaired electrons does a ground-state atom of sulfur have?
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