KCET2010ChemistryStructure of Atom
The set of quantum numbers for the outermost electron for copper in its ground state is
Options
- A4,1,1,+ 1 2
- B3,2,2,+ 1 2
- C4,0,0,+ 1 2
- D4,2,2,+ 1 2
Correct answer
C. 4,0,0,+ 1 2
Step-by-step solution
The electronic configuration of the Cu atom is ₂₉ Cu =[ Ar ] 3 ~d ¹⁰ 4 ~s ¹ Since, the outermost shell is 4 ~s , thus outermost electron is in it. For 4 ~s ¹ , n =4, l =0, ~m =0, ~s =+ 1 2