MCQ
The configuration $1{s^2},\,2{s^2}2{p^5},\,3{s^1}$ shows
- AExcited state of $O_2^ - $
- ✓Excited state of neon
- CExcited state of fluorine
- DGround state of fluorine atom
✓
Answer
Correct option: B.
Excited state of neon
b
(b) The ground state of neon is $1{s^2}2{s^2}2{p^6}$on excitation an electron from $2p$ jumps to $3s$ orbital.
(b) The ground state of neon is $1{s^2}2{s^2}2{p^6}$on excitation an electron from $2p$ jumps to $3s$ orbital.
The excited neon configuration is $1{s^2}2{s^2}2{p^5}3{s^1}$.
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
Which of the following relation is incorrect
Dipole moment of $NF_3$ is smaller than
→Maximum oxidation state is present in
The magnetic quantum number of valence electron of sodium $ (Na)$ is
→Structure of $S_2Cl_2$ is analogous to
→Given below are two statements:
→Statement $I$: Group $13$ trivalent halides get easily hydrolyzed by water due to their covalent nature.
Statement $II$: $\mathrm{AlCl}_3$ upon hydrolysis in acidified aqueous solution forms octahedral $\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$ ion.
In the light of the above statements, choose the correct answer from the options given below :
The ammonium ion is
Correct statement about above reaction is
$Na^+$, $Mg^{2+}$, $Al^{3+}$, $Si^{4+}$ are isoelectronics. Their ionic size follows the order
→The most suitable method of separation of $1 :1$ mixture of $ortho$ and $para-$ nitrophenols is
→