1.

Which of the following statements is not correct about the electronic configuration of gaseous chromium atom [MP PET 1994]

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 \['l'\] 0 and 2
Answer» D. Its valance electrons have quantum number \['l'\] 0 and 2


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