Question

Which of the following statements is not correct about the electronic configuration of gaseous chromium atom

• A. It has 5 electrons in 3d and one electron in 4s orbitals
• B. The principal quantum numbers of its valence electrons are 3 and 4
• C. It has 6 electrons in 3d orbital
• D. Its valance electrons have quantum number 'I' 0 and 2

Answer 1

Answer: (C)

It has 5 electrons in 3d orbital.