Easy
Which of the following is the correct electronic configuration of $Cr$ (Chromium)?
- A$1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^5$
- B$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^4$
- C$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6$
- D$1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 3d^8$
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Similar Questions
Which of the following sets of quantum numbers represents the highest energy of an atom?
MediumAIEEE 2007
View SolutionMatch the entries in Column $I$ with the correctly related quantum number$(s)$ in Column $II$.
Column $I$ Column $II$ $A$. Orbital angular momentum of the electron in a hydrogen-like atomic orbital $p$. Principal quantum number $B$. $A$ hydrogen-like one-electron wave function obeying Pauli principle $q$. Azimuthal quantum number $C$. Shape,size and orientation of hydrogen-like atomic orbitals $r$. Magnetic quantum number $D$. Probability density of electron at the nucleus in hydrogen-like atom $s$. Electron spin quantum number
| Column $I$ | Column $II$ |
| $A$. Orbital angular momentum of the electron in a hydrogen-like atomic orbital | $p$. Principal quantum number |
| $B$. $A$ hydrogen-like one-electron wave function obeying Pauli principle | $q$. Azimuthal quantum number |
| $C$. Shape,size and orientation of hydrogen-like atomic orbitals | $r$. Magnetic quantum number |
| $D$. Probability density of electron at the nucleus in hydrogen-like atom | $s$. Electron spin quantum number |
Which of the following pairs of orbitals possess two nodal planes?
Easy
View SolutionFor a magnetic quantum number $m = 0, \pm 1$,the value of the principal orbital (azimuthal quantum number $l$) corresponds to which subshell,and what is the minimum principal quantum number $n$ required for this set?
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View SolutionExplain Hund's rule of maximum multiplicity.
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