Go to wikipedia (http://en.wikipedia.org/), and search for na. You'll find the answer near the top of the list.
Na = Sodium
'Na' is the chemical symbol for sodium. The 'Na' originated back when sodium was called, "Natrium".
The chemical symbol for sodium is Na.
Na is the chemical symbol for sodium. Sodium is a chemical element with atomic number 11.
The chemical symbol of sodium is Na (from the Latin natrium the word for salt).
Na is the chemical symbol of sodium.
The chemical symbol of sodium is Na (from the Latin natrium).
No Na is the chemical symbol of sodium.
Na is the chemical symbol of sodium (natrium).
the chemical symbol for sodium: Na chemical symbol for chlorine: Cl (don't know if it's the same symbol, if it's oxidised or not).
The chemical symbol for a sodium ion is Na+.
Na2O2, or Na-O-O-Na.
Na is the chemical symbol for the element sodium.