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P
Phosphorus
Lithium
Na
Sodium
Se
Selenium
Ra
Mg
Magnesium
Al
Aluminum
Ar
Argon
Co
Cobalt
Ca
Calcium
Cs
Cf
Cr
Chromium
As
Astatine
Cu
Copper
Pb
Lead
Cd
Cadmium
K
Potassium
Mn
Manganese
Hg
Si
Silicon
Ag
Fe
Iron
Sr
Strontium
Sb
Antimony