MCQ
The $IUPAC$ name of an element with atomic number $119$ is $.........$
- Aunnilennium
- Bunununnium
- Cununoctium
- ✓ununennium
$119 \rightarrow$ Ununennium $\rightarrow$ Uue
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[Given : $R_{\mathrm{H}}\left(\right.$ Rydberg constant) $=2.18 \times 10^{-18} \mathrm{~J}$.
$h($ Plank's constant $)=6.6 \times 10^{-34}$ J.s. $]$
[Atomic masses (in $u$) $Mn =55 ; Cl =35.5 ; O =16, I =127, Na =23, K =39, S =32]$