Question

Why is $Na$ used as the symbol for sodium?

Answer 1

We know that the symbols for the chemical elements generally consist of one or two letters from the Latin alphabet. These element symbols are written with the first letter capitalized. From the periodic table, we can find out which symbol represents which element.

Complete answer:
Thus, we see that: the atomic symbol or the element symbol used to denote nitrogen is N. The atomic symbol or element symbol used to denote nickel is Ni, the atomic symbol or element symbol used to denote sodium is Na and the atomic symbol or element symbol used to denote potassium is K. So, the symbol of Na doesn’t represent the elements nitrogen or nickel or potassium. The symbol of Na represents the element sodium.
Since Latin extracts a number of the symbols of some components. For starters, in Latin, metal is cited as natrium. Thus, it changes the symbol to atomic number $11.$ metal is extremely reactive in its pure type. it's a really delicate metal and may be sliced with a knife quickly. In colour, it's silvery-white and burns with a yellow blaze. It creates hydroxide and element gas as metal responds to water. The molecular symbol for metal is $Na.$ From natrium, a metal word. Sodium, outside of cells, is the major positive ion (cation) in fluid. For sodium, the notational system is $N{{a}^{+}}.$ The corresponding material is flavoring once mixed with chloride $\left( Cl \right)\text{ }\left( NaCl \right).$

Note:
Remember that the Latin alphabet, extra details can also be added to element symbols. These extra details are added as subscripts or superscripts of a particular isotope, oxidation state etc. Some isotopes have their own symbols instead of isotopic details added to the symbol of the element.