Also known as: NA., NA+, NA-
NA has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of NA in Governmental & Military.
Symbol:"Na" Atomic Number:"11" Atomic Mass: 23.00amu. One of the alkali metal family. Sodium is a light, metallic element. It is very reactive and almost explodes if put in water. You will find sodium in salt, glass making, paper-making, salt, developing photos, and fertilizers.
Governmental & MilitaryCommonly used when filling out forms (online or offline), where certain fields are not applicable to the user.
Governmental & MilitaryOften used in place of data (in databases, schedules, forms, etc.) when information is not available.
Governmental & MilitaryThe label or number identifying the memory location where a unit of information is stored.
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