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_15366768_1 ( element VARCHAR, isotopic_mass___u__ VARCHAR )

### Question ###
What is the name of the element with isotopic mass of 158.925 34(2)?

### Accurate SQL ###

SELECT element FROM table_15366768_1 WHERE isotopic_mass___u__ = "158.925 34(2)"