noble gases
P
hydrogen
October 22, 1997
Dmitri Mendeleev
look at the periotic table of elements
The periodic question for Bohrium is Bh number on periotic table 107
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
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 letters are called Symbols. They represent elements on periodic table.
The amount of electrons, neutrons, and protons it has in it, Also the spot of the element on the periotic table (medal, gass etc.)
no why here are 2 reasons why it is not find in nature 1 is because it tells the answer in the periotic table the second reson is it is man made espesuly americum californum and berkerum