MCQ
The element $119$ has not been discovered. What would be the symbol for this element?
  • $\ce{Uue}$
  • B
    $\ce{UUe}$
  • C
    $\ce{UUE}$
  • D
    None of these

Answer

Correct option: A.
$\ce{Uue}$
Ununennium is also known as eka $-$ francium or simply element $119$.
It is a hypothetical chemical element with the atomic number $119$. Its symbol is $\ce{Uue}.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Value of ${K_p}$ in the reaction $MgC{O_{3(s)}}$ $\rightleftharpoons$ $Mg{O_{(s)}}$ $ + \,C{O_{2(g)}}$ is
The value of $\log\,K$ for the reaction $A \leftrightharpoons B$ at $298\,K$ is (Nearest integer)

Given: $\Delta H ^0=-54.07\,kJ\,mol ^{-1}$

$\Delta S ^{\circ}=10\,JK ^{-1}\,mol ^{-1}$

(Take $2.303 \times 8.314 \times 298=5705$ )

Concentration $C{N^ - }$ in $0.1\,M\,HCN$ is $[{K_a} = 4 \times {10^{ - 10}}]$
If the potential energy of the electron is $-10\,eV$ what is total energy? ................ $\mathrm{eV}$
Which one of the following dienes would you expect to be the most stable ?
The equilibrium

$NH_4HS(s)  \rightleftharpoons  NH_3(g)+H_2S(g)$ 

is following to set up at $127\,^oC$ in a closed vessel. The total pressure at equilibrium was $20\,atm$ . The $K_C$ for the reaction is

Geometrical shapes of the complexes formed by the reaction of $\mathrm{Ni}^{2+}$ with $\mathrm{Cl}^{-}, \mathrm{CN}^{-}$and $\mathrm{H}_2 \mathrm{O}$, respectively, are
The energies of activation for forward and reverse reactions for ${A_2} + {B_2} \rightleftharpoons 2AB$ are $180\, kJ\, mol^{-1}$ and $200\, kJ\, mol^{-1}$ respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by $100\, kJ\, mol^{-1}$. The enthalpy change of the reaction $(A_2 + B_2 \to  2AB)$ in the presence of catalyst will be (in $kJ\, mol^{-1}$)
$\Delta {H_f}\,({H_2}O) = X;$ Heat of neutralisation of $C{H_3}COOH$ and $NaOH$ will be
In an organic compound the colour obtained by nitroprusside test of sulphur is :