the symbol U (not you) is uranium
N stands for Nitrogen on the periodic table.
Beryilium
iodine
there is no such element
iodine
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.
potassium
Beryllium (Be)
it is fluorine
Calcium.