Easy
Which one of the following configurations represents a noble gas?
- A$1s^2, 2s^2 2p^6, 3s^2$
- B$1s^2, 2s^2 2p^6, 3s^1$
- C$1s^2, 2s^2 2p^6$
- D$1s^2, 2s^2 2p^6, 3s^2 3p^6, 4s^2$
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Which electronic configuration represents a noble gas?
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View SolutionWhat is the maximum number of electrons that can have the quantum numbers $n = 5$ and $m_l = +2$?
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View SolutionGiven,
$(A)$ $n=5, m_l=-1$
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View SolutionThe electronic configuration of the phosphide ion is similar to which of the following?
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View SolutionAn element in $+2$ oxidation state has $24$ electrons. The atomic number of the element and the number of unpaired electrons in it respectively are
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