TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
The set of elements which obey the general electronic configuration \((n-1) d^{1-10} \mathrm{~ns}^2\) is
- A \(\mathrm{Bh}, \mathrm{Eu}, \mathrm{Po}\)
- B \(\mathrm{Ho}, \mathrm{Er}, \mathrm{Lu}\)
- C \(\mathrm{Hs}, \mathrm{Hg}, \mathrm{W}\)
- D \(\mathrm{K}, \mathrm{Bi}, \mathrm{Ba}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Hs}, \mathrm{Hg}, \mathrm{W}\)
Step-by-step Solution
Detailed explanation
\begin{aligned} & {}_{108} \mathrm{Hs} \Rightarrow[\mathrm{Rn}] 7 \mathrm{~s}^2, 5 \mathrm{f}^{14}, 6 \mathrm{~d}^6 \\ & {}_{80} \mathrm{H}^{\mathrm{Hg} \Rightarrow 1 \mathrm{~s}^2 2 \mathrm{~s}^2 2 \mathrm{p}^6 3 \mathrm{~s}^2 3 \mathrm{p}^6 4 \mathrm{~s}^2 3 \mathrm{~d}^{10} 4…
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