MCQ
Amongst the following elements, the highest ionization energy is
- A$[Ne]\,3s^2\,3p^1$
- ✓$[Ne]\,3s^2\,3p^3$
- C$[Ne] \,3s^2\,3p^2$
- D$[Ar]\,3d^{10} \,4s^2\, 4p^3$
✓
Answer
Correct option: B.
$[Ne]\,3s^2\,3p^3$
b
The IE increases along a period and decreases down the group. Also, IE of 15 is more than group 16 as group 15 has half-filled p subshell giving extra stability.
The IE increases along a period and decreases down the group. Also, IE of 15 is more than group 16 as group 15 has half-filled p subshell giving extra stability.
Thus among given option highest IE is of option B i.e. $[N e] 3 s^{2} 3 p^{3}$.
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
The type of molecular forces of attaction present in the following compound is
When $CrI_3$ oxidises to $Cr_2O_7^{-2}$ and $IO_4^-$ , equivalent mass of $CrI_3$ will be :-
→What quantity of ammonium sulphate is necessary for the production of $N{H_3}$ gas sufficient to neutralize a solution containing $292\, g$ of $HCl$?.............. $\mathrm{g}$
→$[HCl=36.5; {(N{H_4})_2}S{O_4}=132; N{H_3}=17]$
The salt that forms neutral solution in water is
In order to prepare a buffer solution of $pH\, 5.74$ sodium acetate is added to acetic acid. If the concentration of acetic acid in the buffer is $1.0$ $M$, the concentration of sodium acetate in the buffer is ......... $M$. (Round off to the Nearest Integer).
→[Given : $pKa$ (acetic acid) $=4.74$ ]
$Ca$ has atomic no. $20 $ and atomic weight $40.$ Which of the following statements is not correct about $Ca$ atom
→Assign $A, B, C, D$ from given type of reaction.
$3PbS + 8HNO_3\, (Dil.) \longrightarrow 3Pb(NO_3)_2 + 3S \downarrow + 2NO + 4H_2O$
→How many stereo isomers are possible for the following molecule .
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)
Cetane is a compound which has very good ignition property. Chemically it is