Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_37 ( z___p__ INTEGER, n___n__ VARCHAR, element VARCHAR )

### Question ###
What is the highest Z (p) when the N (n) is less than 30, and scandium is the element?

### Accurate SQL ###

SELECT AVG(z___p__) FROM table_name_37 WHERE n___n__ < 30 AND element = "scandium"