The most authoritative answer in 2024
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Oliver Gonzalez——Works at the World Intellectual Property Organization, Lives in Geneva, Switzerland.
Because we know that there are
5 electrons in the 3d shell and
1 electron in the 4s shell, we can conclude that there is a total of 6 valence electrons for chromium. The electron configuration of chromium is (Ar)4s13d5.
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