MCQ
The first ionization potentials $\left( {eV} \right)$ of $Be$ and $B$ respectively are
- A$8.29\,eV$, $9.32\,eV$
- B$9.32\,eV$, $9.32\,eV$
- C$8.29\,eV$, $8.29\,eV$
- ✓$9.32\,eV$, $8.29\,eV$
✓
Answer
Correct option: D.
$9.32\,eV$, $8.29\,eV$
d
(d) First $I.P.$ of $Be > B$ because of stable $n{s^2}$ configuration.
(d) First $I.P.$ of $Be > B$ because of stable $n{s^2}$ configuration.
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
In the Gabriel's phthalimide synthesis, phthalimide is treated first with
In the ground state of atomic $Fe \,( Z =26)$ the spin-only magnetic moment is ...... $\times 10^{-1} \,BM$. (Round off to the Nearest Integer).
→$[$ Given $: \sqrt{3}=1.73, \sqrt{2}=1.41]$
In which of the following dissociation of $N{H_4}OH$ will be minimum
→If $k$ is rate constant and $t$ is time then the degree of dissociation for a substance undergoing decay with first order kinetics is
→The $pH$ of an aqueous solution having hydroxide ion concentration as $1 \times {10^{ - 5}}$ is
→Which of the following aqueous solution will exhibit highest boiling point
$A$ is
→Which reaction is not possible
Number of atoms in $11.2\, L$ of $CO_2$ at $NTP$ is .............. $N_A$
→The number of oxygen atoms bonded to one phosphorous atom in $P_4O_6$ is
→