MCQ
Which of the following electronic configuration represent representative elements
- A$ns^{1,2}\,\,np^{1-5}$
- ✓$ns^{1,2}\,\,np^{0-5}$
- C$ns^{1,2}\,\,np^{0-6}$
- D$ns^{1,2}\,\,np^{1-6}$
✓
Answer
Correct option: B.
$ns^{1,2}\,\,np^{0-5}$
b
Representative elements are $s$ and $p-$ block element.
Representative elements are $s$ and $p-$ block element.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
For $d$ electrons, the azimuthal quantum number is
→Conc. $HN{O_3}$
→For the reaction $NH_3$ and $S^{-2}$ are a group of
→$N{H_4}^ + + {S^{ - 2}} \rightleftharpoons N{H_3} + H{S^ - }$
What is the oxidation number of Si in the compound CaSiO3?
If compound $MX_4$ is non-polar without lone pair at central atom than bond angle $ < XMX$ in compound may be
→Assume that the radius of the first Bohr orbit of hydrogen atom is $0.6 \mathring A$. The radius of the third Bohr orbit of $He ^{+}$is $..................$ picometer. (Nearest Integer)
→For vaporization of water at $1$ atmospheric pressure, the values of $\Delta H$ and $\Delta S$ are $40.63 \,kJ\, mol^{-1}$ and $108.8\, J \,K^{-1}\, mol^{-1},$ respectively. The temperature when Gibb's energy change $(\Delta G)$ for this transformation will be zero, is ............ $\mathrm{K}$
→Which of the following statements best describes the stereochemical relationships of compound $I, II$ and $III$ shown below ?
→If the mass table of atomic weights were established with oxygen atom assigned a value of $100,$ the atomic weight of carbon would be
→Which of the following is/are aromatic
