Question

Is there an element$119$?

Answer 1

1. $\mathrm{Element}119$ is a Ununennium, commonly known as eka-francium or element 119 typical seventh alkali metal with an oxidation state of$+1$, is a hypothetical chemical element with the symbol Uue, atomic number $119$and seventh alkali metal.
2. The provisional IUPAC names and symbols are ununenium and uue, respectively.
3. The energetic properties of its valence electron, $8\mathrm{s}\mathrm{electron}$ suggest that the element of first ionization potential would be higher than the oxidation potential estimated by simple extrapolation, meaning that the element's chemistry would be more similar to that of potassium than to cesium.
4. Due to the higher energies, the metallic and ionic radii will be smaller than simple extrapolation suggests.

Alkali metals: Alkali, as a broad term, describes the basic or alkaline quality of their metal hydroxides. The compounds are known as alkali metals because, usually, when they interact with water, alkalis are produced. Bases are the only powerful bases that can quickly neutralize acids.

Hence, alkali is an element$119$.