What is the mass of the element with a nuclide that is 169 tm?
CREATE TABLE table_15366768_1 (
    isotopic_mass___u__ VARCHAR,
    nuclide VARCHAR
)
SELECT isotopic_mass___u__ FROM table_15366768_1 WHERE nuclide = "169 Tm"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the mass of the element with a nuclide that is 169 tm? ### Input: CREATE TABLE table_15366768_1 (
    isotopic_mass___u__ VARCHAR,
    nuclide VARCHAR
) ### Response: SELECT isotopic_mass___u__ FROM table_15366768_1 WHERE nuclide = "169 Tm"