Medium
Which of the following pairs of ions have the same electronic configuration?
- A$Li^{+}$ and $Na^{+}$
- B$Na^{+}$ and $K^{+}$
- C$K^{+}$ and $Ca^{2+}$
- D$O^{2-}$ and $Cl^{-}$
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Consider the following sets of quantum numbers $(n, l, m_l)$:
Set $(n, l, m_l)$ $A$ $(3, 3, -3)$ $B$ $(3, 2, -2)$ $C$ $(2, 1, +1)$ $D$ $(2, 2, +2)$
The number of correct sets of quantum numbers is $....$.
| Set | $(n, l, m_l)$ |
|---|---|
| $A$ | $(3, 3, -3)$ |
| $B$ | $(3, 2, -2)$ |
| $C$ | $(2, 1, +1)$ |
| $D$ | $(2, 2, +2)$ |
The number of correct sets of quantum numbers is $....$.
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