I is Iodine.
11 is the atomic number for the element sodium in the periodic table.
Calcium.
water
Helium.
cerium
N stands for Nitrogen on the periodic table.
Beryilium
iodine
there is no such element
iodine
CuL2 is not found on the periodic table as a stand-alone element. It likely refers to a compound where Cu represents the element copper and L represents a ligand that is attached to the copper atom. This compound would be a coordination complex, not an individual element on the periodic table.
'h' doesn't mean anything in the Periodic Table. 'H' (Capital Letter) is hydrogen 'He' (Capital Letter followed by a lower case letter) is Helium. Careful with your use of capital/lower case letters. Follow as shown in 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.
potassium
Beryllium (Be)