Other contributors have said "What is old name for nitrogen?" is the same question as "What is the common name of Nitrogen?" If you believe that these are not asking the same thing and should be answered differently, click here
The scientific name of a chemical compound is the name given by the IUPAC. Common name is the name that was used before scientific names were used. For example, the compound CH3CHO is an aldehyde....
Joevanna isn't a common name, but as people recognize the name more, the more popular it will get. Just like the name "Savannah". My name is Joevanna and my sisters name is, Savannah.