Unbibium (element 122) has now bin declared "not found" although there was an experiment that supposedly created the element, it has now bin passed over.
The chemical symbol for Unbibium (element 122) is Ubb.
unbibium (122) @ Hebrew University of Jerusalem
The last element to be discovered was tennessine, with the atomic number 117. It was officially recognized by the International Union of Pure and Applied Chemistry (IUPAC) in 2016. Tennessine is a synthetic element that is highly unstable and only exists for a very short period of time.
mickey mouse year:1995
yttrium was discovered in the year 1794.
With the atomic number 122, it's isotopes have the masses 292, 297, 298, 300, 302, 303, 304, 306, 308, and 337 amu. The most abundant of which is 304, with 182 neutrons. Unbibium is naturally found in Thorium (atomic number 90; average atomic mass 232.0). -Topher Ratliff; December 10th, 2012 edited same day.
In the year 1902. Dr. Still discovered ADHD.
it was discovered 1347
ATOMIC NUMBER YEAR IN WHICH IT WAS DISCOVERED? it was discovered in 1913 by British physicist Henry Mosely
argon was discovered by Dr.william Ramsay of Scotland in the year 1894.
sulfur was discovered in 1777
1825 aluminum was discovered.