To determine the number of valence electrons, core electrons, and unpaired electrons in a carbon atom, let’s first write its electron configuration.
Ground-state means that Carbon is in its lowest energy form (not in excited state). Carbon 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
Carbon:
▪ Atomic number = 6
▪ # of electrons = 6 e-
For each element, indicate the number of valence electrons, core electrons, and unpaired electrons in the ground state: (a) carbon
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Our data indicates that this problem or a close variation was asked in Chemistry: The Central Science - Brown 11th Edition. You can also practice Chemistry: The Central Science - Brown 11th Edition practice problems.