Messierium

Messierium is the provisional non-systematic name of a theoretical element with the Me and  173. This is the last possible element. In the scientific literature, this a hypothetical element with atomic number is referred as the unsepttrium (Ust), dvi-, or simply element 173. On the periodic table it is the only element in the second row of and is the second element of the lavoisium family, located in the periodic table coordinate 6g$1$.

Atomic
is the last possible element before electrons in the 1s orbital need to go faster than the speed of light, which is physically impossible. So any atom heavier than would only exist as a positively charged ion and therefore would not be an element. atom acquires the first electron in 6g orbital when going from the previous element ramson. It is also the heaviest possible atom for the most stable isotope of an element, weighing 512. Despite this, this wiki has an unlimited amount of elements.

Substances
It can make the hardest substance/alloy, SoMeBoDy. Somebody is used in nuclear and earthquake-proof buildings.

[[Category:M]]