October 22, 1997
noble gases
Phosphorus's symbol on the periodic table is P.
hydrogen
Mendeleev's published the periodic table in 1869.
The periodic question for Bohrium is Bh number on periotic table 107
Mendeleev's published the periodic table in 1869.
As stand for Arsenic on the periodic table.It has atomic number 33 and is a non metal.
6 helium neon argon krypton xenon radon
In the yer 1869, Mendeleev published the periodic table.
If you are a Creationist the answer is God, if not then the answer is they just exist. or scientists found them and put it into the periotic table. Scientists may have discovered them, they certainly didn't invent them, and I think you mean the periodic table of elements.
The first maker was Dmitri mendeleev
Dmitri Mendeleev published his article on the periodic table in 1869.