helium
N stands for Nitrogen on the periodic table.
If you mean 'U' that is Uranium. It has atomic number 92.
Beryilium
there is no such element
iodine
iodine
Sn stands for the element tin in the periodic table.
No, the symbol "H" stands for Hydrogen on the periodic table. The symbol "He" stands for Helium on the periodic table.
Argon is what Ar stands for on the Periodic Table of elements.
Sr stands for strontium on the periodic table of elements.
11 is the atomic number for the element sodium in the periodic table.
it is fluorine